I am doing this right now and added about 4in. to the top of the buds. Also allot more leaves are now all the way coved in THC. My other plants did have THC on the leaves but not like this. Should get a good bit of hash. Didn't really mean to do this. I moved my mothers into a new tent and used a times and forgot to rest it. so they where in 16hr light. I left them for a about 3 weeks then wanted to see if I could reveg them then back to flower. Looks like it worked. I bet I could have got them bigger but didnt need to.