Here is the thread with the pics I took of some of the revolvers:
Just got my first sets of Herrett's stocks
I would say I have medium/large hands (i.e. somewhere in between medium and large). But I think that unless you have really small hands, Herrett's can make a set to fit your hands (you send them a hand tracing).
I agree that grips are a very personal thing, almost like shoes. We can make generalizations or talk about what works for us but it doesn't necessarily work for everyone.