I'm 6'4" and 250,Haha, ok. The way you phrased your first statement, about your thumbs being too big for the hole, had me thinking you were trying to use it by sticking your thumb into it.
I guess I still don't understand how your thumb can be too big to use the spyder-hole (most of them are pretty big). You must be a giant of a man, at least in the hands department!
And it's not that I can't get them to work at all, they just aren't even comparable to using a stud. Or fixed blade. Or trigger.
Even my Skeletool has a qwik stud, it looks terrible, but I haven't found anyone that can make me a blade that won't cost an arm and a leg.
