I hope this can be my first worthy contribution to the forum....
This is for people who are already practising the muscle pass, and I hope I am not giving away the secret willy nilly.... I know how hard it is, and I never really got any help, but I hope it helps whoever is practising
The effect:- The magician asks the spectator if he has ever seen a coin fall down, speactator is bemused at such a question... he says 'Yes, of course' the magician hold the coin up and drops it into his hand below, 'how about a coin falling up???' without waiting for a reply the magician holds his hand out palm up with the coin on it, and the coin FALLS up into his other hand (palm down) which is waiting above!
A couple of people I spoke to have so much trouble doing this [muscle pass]. If done properly it is a fantastic effect. I use casino chips (if you can get hold of some it is excellent practise) or coins the size of casino chips, half dollar and one dollar coins are good.
It is very frustrating when you cant do it straight away, but as with other tricks.....practice!!!!!!!
Practise as often as you can, slightly sweaty hands may make it easier, sometimes I have to hold the coin tight in my pocket so my hand gets sweaty. When squeezing the coin, get it in the same place evrytime, build up a callus on your hand to make the skin hard.
Your THUMB muscle will hurt when you start practising. But practising it a lot will develop your thumb muscle and make it stronger, within a couple of weeks you should be able to make the coin jump 4-6 inches
For anyone who didnt need or want to know this...I'm sorry!!!

Good Luck[/b]