Well week 4 is done
Some important practice notes are;
Minimum finger movement when "taking" a coin
Practice quick moves. I found that I was practicing just a bit 'too slow' and that lead me
to have rather awkward 'take'.
Also in that "takes" i find that actually touching the coin with your fingertips makes a big difference when 'taking'. You make contact with the coin for some brief moments. I'm betting it also 'moves' the coin slightly and that subtle action is a bit more of a convincer..
I guess check out Week 4 ending to find out.