There are degrees of inhibition.. However, at doses BBers use, inhibition at 10 weeks isn't all that different than 5-6 weeks or so..
Bill Roberts will tell you that generally, strong inhibition sets in after two weeks.
Also, AAS levels that are too low for gains (100mg test/week) are often high enough for inhibition.
This is why I call the time spent after your cycle (waiting to start clomid) 'dead time'
Andy