[Yes] I've never liked ballheads but this sounded like a good combination of geared and ball features so I gave it a try. It's great. The ballhead lets you very quickly find approximate setting and then use the gears to quickly fine tune your composition.

This is my first Arca-Swiss head and I'm very impressed by the machining and engineering. My whole rig is very solid now. It's a huge improvement over Manfrotto equipment.

I use the Ruggard 6x4.5 lens case (BH# RULCY16X4) to transport the head. It's the perfect size and provides more than enough padding and protection.

[Yes] In response to Howard request, I am expanding my earlier review without mentioning previous comments. This a solid ballhead and when is locked it will not move. I have owned other Arca-Swiss ball heads as well as Markins, Manfrottos, Feisols, etc and this has been the best for my purposes. It is compact and is the only that allows to reverse the legs of the tripod without interference due to the various knobs in the other ball head.I selected this ballhead because is compact, travel friendly and can be used for landscape as well as bird photography with the rig I built using Hobu side arm and an aluminum block to use similar Wimberly Sidekick or Swing platform. Photo is included. So when I am in the field I only carry this rig and when I use the ballhead, I just remove the rig and becomes a ballhead. Another advantage is that is serves as a leveling device so one does not have to worry when the tripod is not leveled.

[1.795 lb] Paired this with the Gitzo GIGT1545T Traveler Series 1 Carbon Fiber Tripod. Great combo! This ball head works smoothly and very study. Just follow the directions to know how to properly adjust and use the fliplock. Have had the larger Arca-Swill ball head for years without issue. Plan to have good experience with this one too. Looks to be all great quality.

[1.795 lb] とても気に入っています。

[Yes] I was a little skeptical because of some of the complaints of the flip lock lever, and the floppy tightening ring. Both complaints are misguided! The lever is a brilliant solution and provides an excellent safety interlock. There are two catches that restrict the opening of the lever. This is a very good thing! The first catch is obvious and needs to be lightly pulled to open the 1st 90 degrees. Then one can see a ribbed rod within the lever that sits right at your fingernail which, when pulled lightly, releases the lever fully. This is the best safety interlock I have ever seen. As for the so-called floppy tightening ring, the manual states clearly the the play is necessary for proper function. It is silly to complain-the ring is very easy to operate. All in all, the best ball head I have ever used. It is crazy strong and light. My carbon fiber tripod FINALLY is really light like it should be! And with the rotational function above the ball, one can shoot panos without an added pano accessory. That alone should save a couple of hundred on the rig! Highly recommended!

[Yes] Let's be clear: the sole purpose of a tripod, is to provide a stable platform for the camera. A tripod leveling base is a waste of money: whether the tripod is level, or not, is immaterial -- leveling the camera is paramount. With a leveling base, a second leveling operation, to level the camera, is required. Why not just cut to the chase, and eliminate the unnecessary tripod leveling base? This Arca-Swiss Monoball P0 ball head does just that. The inverted design (literally) turns the ball head design principle on it's head! This ball head gives the photographer all the advantages of a leveling base, panning base, and aspherical ball head, in one. The inverted ball head design, is evidence of Arca-Swiss' engineers' out-of-the-box thinking a willingness to challenge the dogmatic approach to design and operation: traditions raise institutional barriers that rational treatment. The build quality of Arca-Swiss products is beyond reproach: and this ball head carries that reputation forward. In use, I have found that it functions exactly as expected; intuitive, positive, and fine control. It is dense, but overall, does not add significant weight ideal for landscape work involving a hike-in, where every little bit hurts. Even on lead-pipe studio tripod bolted to the studio floor the advantages of this elegant design (copied by Novoflex https://www.novoflex.com/en/products/camera-support-systems/ball-heads/classicball-5-ii/) is apparent to anybody willing to divorce themselves of the traditional prejudices. To those afflicted with G.A.S. (Gear Acquisition Syndrome), I say this: equipment aids talent it doesn't substitute for it. Simplify, simplify, simplify.

[Yes] The fliplock feature provides a stable lock. The locking mechanism for the ball head is the corrugated ring and is easy to handle. You have to adjust the width for your camera mount to fit. The instructions could be written clearer.

[Ball Head] great design and build quality. The best part is how compact it is. saves a bunch of space when traveling

[10°] The Fliplock is easy to operate and the straight forward two step design requiring deliberate actions on my part means distractions or confusing controls wont cause me to release my equipment inadvertently.  Adjustment to the Small Rig L bracket width was straight forward.  I do recommend using only one manufacturers brackets so you wont have to readjust the Fliplock clamp width.  The p0 does sit atop the RRS TQC-14 Mk2 with clearance above the quick column lock collar.  The p0 wont fit between the legs of fold back series 1 tripods without impacting the legs, but the p0 is such a pleasure to use Id rather add the extra length leaving the tripod unfolded or remove the ball head (when backpacking) than opt for a different ball head.  The p0 will securely hold more weight per ounce of ball head than any of its competitors and its design means you will be shooting panoramas with a level horizon while other brand owners are adding on their heavy leveling base or disassembling and reassembling their ball heads for a panorama.  The 3.5 pound combined weight of the RRS TQC-14 and the Arca-Swiss p0 mean I will be climbing to the top of a 14er this summer with my gear rather than opting to leave it behind as in years past--no more regrets.

[90°] Arca Swiss is in a different quality and design zip code from it's competitors. One of the most consistently innovative companies in our craft they do most everything differently, but with a purpose, and all of their designs are brilliantly useful and executed at the highest level. Ultimately they just work and work and work and work and make you smile while you use them. I own and use the p0, p1 and Core 75 Arca Swiss heads for different purposes and they are all great. This little p0 is small, light and grips like a vise when locked in place supporting up to 44 lbs without a complaint. One of the unsung and underrated hero's of Arca is the brilliant Fliplock Quick Set that locks the camera in place. It is small, perfect, has it's own lock, is very secure and you can feel totally comfortable hanging an expensive camera in its confident grasp. If you need a small positive ball head I can't recommend this one highly enough - except that it's worth spending the extra $$ for the the p0+ which has a preset tensioning adjustment. Products from Arca aren't cheap but they are worth every penny.