I think generally, it's up to you. I'm pretty sure the standard advice here is to watch the trichs and cut when your desired effect seems to reflect the trich color. Others will say let the plant tell you when it's ready....
Looks like the cream caramel got purple in just 4 days... looks close 2 done now!
If you have a scope you should check them + If not I'd be harvesting in the next couple days.
I'm not a big fan of auto-flowers and not very experienced with them.
more pics!!
pics taken at day 77.. buds are still growing so im going to let them go for abit longer!
thx for the tips guys ill prob post more pics in 2-3 days