OK, i'm not optimistic on that case because with a sativa/indica mix that take 8 weeks to flower, trichs appear just after the stretching phase. Now, the plants have stopped stretching, the buds are forming, and no trichs, no smell, and 6 weeks of 12/12. I keep you informed of the evolution. Anyway, pure sativa's are not prone to indoor growing, too many branches, too tall ...
Fhydro