I have tried RR also but didn't get the success of the person that turned my onto them.He was busting roots OUT of the RR in 5 day's .Nice 1/4 ta 1/2 inch fuzzy wuzzy porn hangin out of his cubes.Dome and heat pad and he was able to achieve perfect conditions.I couldn't duplicate.
I was averaging 10-14 day's before i saw chit.Got tired of havin to ph them....out da window they went.
TTT....i have wondered in the past about a mild nute regimen in my bubbler to start cuts.Think i'm gonna mess with it but i think i'll use a flower nute only to see if it aids with faster rooting like it does with cutting N and a boost of P to a mother plant before taking cuts helps.