Interesting story on the original advance levers being problematic on the OMs. I presume we are talking early OM-1? It is a lot to ask of a conversation that happened a while ago ;-) but do you remember when that was? The OM bodies i have bought are usually newer ones (and like the 2n the best) so maybe that is why I have not personally seen this issue. Also I know I am a small sample set haha.)

Even if I knew it would preserve the life of my OM, I am not sure I would use a powerwinder - the small size of the system is one of the things I like.

BTW, not challenging a rugged old Nikon could likely pound nails longer than an OM, but I do not baby my OMs ;-)