I think the way Matthew Dowden does the Sl*p c*t force in His DVD Party Animal is a very convincing force. I use it as my primary force as the patter used and pointing with the fingers means that you have to rotate the hands to show the spectator what your doing. This renders it undetectable from all angles in my limited experience of doing it this way for about 9 months...The classic is obviously the fairer looking one but how many times do people decide to choose the bottom card regardless what methods you use on the classic?!! (Unless I just perform on really awkward people?!


