I tried some ACE a little while back, with the intention of finding those old chronic land race sativas of my youth.
Kinda disappointing results.
Lots of males, and most females were not of great quality. Not saying you cant find some good ones, i had a good golden tiger, not exactly strong like the description, but i didnt have it dialed in optimum.
Just think it might be better to get a hybrid, or pure sativa that has already been selected out of these landraces, and work on them from that point.