Errrm...perhaps I'd best specify a bit.
I'm learning stacking from the Todd Strong DVD. I can make it work with a cheap plastic cup, but not with a nice leather cup I bought from Frank. Now I know Frank does good work, so it's got to be something I'm doing wrong.
Further clue: I can stack 'em when I keep the cup on the table, but cannot maintain the stack in the air...
Much obliged!
I"m not sure what you mean by your ability to stack on the table but not in the air?
Dave, his cup should be smooth on the bottom, smooth on the inside.
MY suggestion is to do it nice and smooth. Don't be too aggressive, just smooth with good follow-thru.
Can you video yourself doing it so I can give you some feedback?