Thanks for the comments
For information, I'm currently working on my own hands tutorial, I don't know if I 'll put it on mfca.org or on next Tweak issue....probably on MFCA.org, since I've got other projects for the tweak, but who knows if I 'll have enough spare time to do that...
any way, here's a pic of the final result I obtain with my own technic, used on a small tudor fig (smaller than big men, HK I believe ? ) for the example.
I tried to keep it simple, fast and technically affordable for any average MF modeller/customizer.