harvest at all those points and find out....cut some at mostly clear, smoke it, and so forth, thats what id do...and write down how they make you feel at each stage.....
well... I thought this mainly depended on the genetics of a head high sativa or body locked indica... but from what I understand cloudy trichs are more ceberial head high and amber trichs will give you that more body couchlock feeling! I don't think I'd even try clear trichs... from all everyone has told me, that just means it's not ready yet.
Definately wait till they're at least cloudy. Mine took about 4-5 weeks from clear. Patience ! the longer you leave them the frostier they get and soon you'll see some amber, Thats when you can start to think about pulling them.