Forgive me if this is a stupid question, but is there the same need to shim if using the lens on say a Zorki or a Fed rather than a Leica? I suspect the answer is of the how long is a piece of string type, but who knows!
Film amateur with a few rangefinders - Leica III, M2/M3, Werra 3 and Zeiss Super Ikonta 534/16 medium format.
Apart from that have a Rolleiflex 3.5F, the odd Minolta XD7, Hasselblad 500cm, a Topcon Super D and an Intrepid 5x4 large format (not the half of it but I am clearing them out, honest).
I do all my own black and white developing at home.