PacAce wrote in post #2452208
I don't think anything gets stripped out but it may also depend on how the heads are attached to the tripod. I have the 3221 which has a removeable center column. It has a metal top where you can screw your head to and it's got three set screws to keep the head in place. There's also a screw base (not sure what it's really called) at the bottom of the column which is comes off and it made of heavy plastic. When you take the center column off, you can place this plastic base on the tripod and attach a different head on it. So, my Wimberly is screwed onto the center column proper and the 486RC2 head is screwed on to the plastic screw base. When the tripod is set on its legs with the Wimberly head on top, the 486RC2 is hanging upside down at the bottom of the center column.
If you don't have a center column that works like mine does, it might be a pain to be screwing off one head and screwing on another though.
I use a Monfrotto 394 quick release plate on top of my Gitzo 1548 in order to conveniently switch between my full Wimberley head, my Manfrotto pano head, and a Gitzo ball head. I think the Manfrotto release mechansim is very safe and secure. I have drilled and tapped both the Manfrotto top plates and the tripod mounting plates, and inserted set screws in order to make sure that the plates can't twist off accidentally. The last thing I need is to be carrying a 600mm f/4 and tripod over my shoulder and have the head fall off!
My priorities, after 50+ years of photography: 1. The best tripods and heads I can afford (and can lift) for the given application. 2. The best lenses I can afford. 3. The best technique and vision I can master. 4th and last: The best and most modern camera I can afford. 1 though 3 will beat number 4 any day of the week. So far, I've gone through 6 35mm film bodies, 1 6x6 body, 3 4x5 cameras, two 5x7 cameras, one 8x10 camera, one 8x16 camera, and now two digital cameras (350Xt and 30D); plus six or seven (don't remember) Pentax lenses, both screw mount and bayonet, 14 or more Nikon lenses, seven Schneider view camera lenses and a couple of others including an Apo-Dagor, and so far nine Canon Ef and EF-S lenses, from the 10-22 up to the 600mm f/4L non-IS.
But in all that time I've only owned one Leitz Tilt-All, two Letiz tabletop tripods for use as a chestpod (still used), the aluminum Gitzo Tele-Studex Giant Cremellier (some 10 feet high, currently in storage in Utah and inaccessible, a slightly smaller Gitzo (numenclature not remembered, also in storage), and my curent favorite, the 1548 carbon fiber wth leveling column (and crank column) and my new suitcase-sized 1258 LVL
A good tripod and head should last almost forever, unless you run over it wil a truck. Buy a good one the first time, and you'll never regret it. Ansel Adams was right, if not completely practical: "The best tripod is a cubic yard of concrete with a 1/4" stud on top." I might prefer a 3/8" stud, myself.