Having slagged off the Winder M4-2 something rotten (above), today I discovered a webpage (which may already be known to some of you:
http://www2.bitstream.net/~c&bell/ ) that told me how to make said winder quiet and smooth. So I pulled my winder out of the drawer in which it had lingered, cameraless until very lately, since about 1987, dismantled it, and set about making the appropriate adjustments. I also put a stronger spring (cut from a retractable ballpoint pen) under the winder dog because it was plain that the winder dog was slipping against the camera coupling. Anyway, that done (and me being pleased with my new-found quiet, smooth winder) I looked at it again.
Properly adjusted it works very well and is now a complete revelation. Mine was bought new, completely out of whack and at the time they didn't want to know about it - hence my annoyed letter to Leitz. Why they couldn't adjust them right at the works I don't know.
It now gives a very efficient 3fps with the brand new batteries I put in today (actually slightly quicker than my Nikon MD18 on some, admittedly well-used, Duracells) if the shutter release is "ridden" properly.
It has a major advantage over the new Motor M - it takes available-anywhere AA batteries.
So what are the two problems that remain with this winder?
1) That it almost doubles the height of the camera and makes it rather more massive than one would normally like. Having said that, what about the motors for the M2's and 4's??????Blimey!
2) That with the motor attached you can no longer put the camera down standing upright.
The main issue for me is No 2.
So what if you could take the battery holder off the bottom and put it, say on the front????? In the manner of the Remopak batteries that were applied to the Nikon S's and Fs. Has anybody done this already?? The idea would be to mount the pack, maybe in a custom housing, so that it widens the base forwards and gives a stable platform for putting the camera down. I've been looking at this, and it should be easy to accomplish. The main issue will be slimness: it would need to leave sufficient room (for me at least) to comfortably get to the focussing lever on my 35 'lux. Mind being applied; we'll have to see what happens. Watch this space.