I'm not sure if this should be filled under whine or rant - but what gives with the worlds most un-comfortable thumbstud? I'll concede that the design is very positive in terms of grabbing your thumb - but damm - this thing hurts! Given the truly elegant and functional design of the rest of this tool - the thumbstud is just plain weird. My theory is that Mr. Reeve's day job is as the knife meister - but he actaually lives to play bass guitar in some sort of band.( anybody know what his taste in music runs to?) -as a result he has developed a tremendious callis on the outside of his right thumb ( this assumes he plays left handed and frets with his right hand) - therfore he has inocently come up with this very painful design feature?