Well, i dont grow in soil other than to do test runs like this. Anything i would do in hydro would blow these results out of the water and everything would have been riper. With that said, i think differences in some phenos are very dramatic. The starbud sister plants univerally made heavier tighter buds that ripened faster. Theyre all on the skunkier fuel side if things. The sour power were on the lemony side of things and had smaller buds. I think all of the starbud sis phenos have the potential to yield very very well. As for the sour power phenos id say that #4 and #5 could yield very well, the others are medium yielders. If yield is your main goal, go with the starbud sis x biker.