I put the pollen from each male in separate long sac and carefully place it over a single branch 1 to 2 weeks into flower,that way you controle the process,I've done up to 4 different males on single mother,works well
I had a light malfunction while on 24 hour cycle and didn't catch it quick enough ,only 45 minutes of dark on 3 week old regulars and and all 4 reveged without ever flowering first true story
The offsprings genetics would be deteriorated and the high get worse ,I've just read about it recently,I had a similar idea and my were crushed,feminized works fine , ruderalus genetics in auto flower is to blame,have you tried purchasing pollen,idk if that's a thing or not,
I use equivalent to a bread sacs with different pollen in each placed over single each two to three weeks into flower depending on progress,if not that I hit the first two or three hairs that appear on a single branch at the beginning of flower, offspring most often are better than parents,from...