Turn-out I found out the thumb grip is great idea and pretty useful (for me). it let me hold my M with more steady, the one I get on ebay is the one with locking screw.
-capt3450
My ideal would be, that the M's thumb *grip* would be a bit bigger so it really would give grip. This kind of external thumb grip were ideal (for me) if it extended above the M's record button where such grip should be. If someone finds a longer thumb grip, please let me know!





