my 2 cents:
Nothing is a replacement for the Abrahamsson soft release. Not because the other softies are bad, but because you can feel the pulse of RF magic coursing through your finger when you touch that Rapidwinder softie -- the electric sense when your forefinger contacts the slightly domed release....the sensation as you press down, with just the right amount of pressure, to ensure a solid "click" of the shutter.
Only works this way on the Leica M2 -- Tom's chosen one.
BTW, I'm only slightly kidding. Tom's softies really are the best fit for my RF bodies (yes, mostly Leicas). And I really do think its nice to have a bit of the contemporary Leica lore with you in the form of a Tom softie (I should say Rapidwinder softie). Its genuinely a shame that you cannot get an RFF anniversary version. Still, they're nice and I believe still available. We all miss Tom...