How much couchlock on pure sativa amber trichs??

How much couchlock should I expect from a pure sativa that was harvested when most trichs were amber? Im trying to see if it will be ok for nite time smoke.

Well some Sativas never get amber because they keep budding for so long. So that's a good sign for couch-lock. Though I've never really had the experience of harvesting a pure Sativa so I wouldn't really know. I've seen Indicas harvested early and they have soaring sativa characteristics so I don't see why it wouldn't go visa-versa.

ok cool but hopefully they give me some kinda indicator of when its at peak potency