I didn't top, broke the main stem when trying to bend over to tie. All it seemed to do was piss her off, lol. I've looked at pics of both parents, lol, mine has characteristics of both, duh, but not that leaf twist yet, I'll check tomorrow when lights on. But I can't help but notice the lush color and the size of the bud sites forming. plump as hell. Now I read if you don't lst the gg4, she'll be tall and lanky and floppy. I have great airflow so I figure it has to strengthen the stems, etc. But Ive grown some gg4 crosses and they were lot shorter. So just watchin and learnin, lol.