I can give you a good answer because I shoot both the regular 300 P67 telephoto and the fancier 300 EDIF version with the supplementary lens collar tripod attachment. I get utterly precise shots every single time. You might or might not like my answer. First of all, ignore nearly all the advice already given. Much of it won't work. No wonder everybody complains about results with these lenses. You need something truly solid. I use the same big wooden Ries tripod as I do with my 8x10 view camera, or else the same PLATFORM TOP big Feisol carbon fiber tripod when I want less cumulative weight. I do not use any kind of tripod head! They're bad enough, and ball heads in particular are the root of all evil when it comes to stability. These big heavy lenses create a lot torque leverage on any attachment system, more in fact than the average large view camera because it's all leaning forward and harder to balance above the center of the tripod. Plus there's risk of amplified vibration due to the large mirror kick of the P67, or even the shutter curtain when MLU is applied, which might not otherwise be a factor in shorter lenses or other kinds of MF SLR's. The older style 300 has no independent tripod attachment, so I use a very solid cast quick lease on the 67 camera and a matching quick release adapter mount ONLY atop the tripod (no head, no center column, no nonsense!) - you want to distribute that torque vector as strongly and directly as possible to the platform, where it is distributed straight to the legs. For the EDIF lens, I made a cute adapter out of solid maple, which I pickled with marine epoxy tinted with rust to match my weather-worn Ries tripod, but otherwise epoxied to machinable phenolic stock for total dimensional stability. It has two properly spaced 1/4-20 threads inserts, one accepting the lens collar ring, the other, the the thread screw fitting into the camera body itself - two points of attachment unified by a single precise adapter, which in turn is bolted directly to the tripod platform via its own 3/8-16 standard turnbolt. Incidentally, adjusting a tripod using legs only, and no head, is how surveyors did it for many decades, and how I've done it for several. It's easy, fast, and instinctive with practice.