I have grown many Short Stuff strains. Himayla blue disel in Coco was some of the best pot ive ever smoked. RRF is good aswell, but the yield is not as glorious as advertised. I can say from growing Onyx, that IF you get the right pheno(Stems tend to be a greater shade of purple) with sativa-like leaves, it can reach a height of 26inches in a 2gallon pot, and yield around 37 grams of dried cured buds per plant. that was my best result.
from a 10 pack, striaght into 2gallon pots of Coco
6 females, 3 males, 1 premature death.
From the 6 girls,
2 Purple Stemmed phenos. 26 and 19 inches tall.
1 Avg automatic plant, 12 inches
3 midget bitches. 4,5,6 inches tall(it made a runt staircase in the growroom lol, and the pots were rotated equally so the result was not due to the physical distance from the light) avg 2-4gs dry.
They all took about 81 days from first cotelydon openage.
So. if you tend to get the purple stemmed pheno, i cant imagine how nice these would be in 5 gallon pots, i was stuck with 2 for space concerns.
However, for every plant that is not this pheno, you will be dissapointed.
Hit And Miss.
But most autos tend to be this way since every bit of stress they recieve cuts into your final yield.
I havent tried mi5, but the purpling looks really nice, anyone try these yet?