Great question!
ActivaTE is great! It has Rhodolia in it which I respond to very well.
The other thing is ActivaTE is comparatively cheap for a test booster. It is not as cheap as the Controlled lab product (Blue Gene or Blue Up I forget). Price per following it is cheap.
So its a hard act to follow and it depends on how synergistically it is interacting with the other stuff in the mix. This I dunno. In nootropics this really important, e.g. you can take Interlectol (V... whatever its other name is) add caffeine and it kicks in strongly. By itself it does little.
Taking bulk divanil may be more effective, would be cheaper and allows a bigger load. I know with nootropics bulk is the way to go otherwise no effect. Buying nootropics in high grade small dose is pretty much useless unless its the few most powerful nootropics around (sulbutiamine, phenibut and possibly picamilon and PEA if the delivery is spot on).
For myself the Rhodolia is something I respond to so well and its more cost effective to buy it in ActivaTE - so thats my answer, I don't think I need to try bulk powder.
I personally believe that divanil and Rhodolia interact positively - but its just an idea.