Some random questions about proventester and fedora groups

[Athmane Madjoudj]

Hello all,

I'm a Fedora Rawhide tester, obviously I have FAS account and Bugzilla 
account and i whish to join a group

which one is the most appropriate ?

I have read about "Proven tester" [1], i whish to know much hours per 
days should i spare to that ?

[1] http://fedoraproject.org/wiki/Proven_tester

Thanks for advance.