Not directed towards me but I hope y'all don't mind if I chime in. Personally for 7 gallon I like (4) in a 4 x 4 space, well trained, short in stature for max penetration. Although I really should have 1000 watters, it does very well with 600's. Like Hovering, I strip the shit out of the bottom of the plant and try to remove any budsites that won't contribute to anything but hash. A friend of mine once told me , lollipop until you feel like you've done way too much and then go back and do some more. I like to do it all the way through veg and through the first cpl weeks of flower. You're not going to hurt the plant, it keeps rolling. After over a year of lollipopping undergrowth I'm finally learning how aggressive I have to be. Or rather, I'm finally willing to spend the time necessary to train and lollipop the plants, which takes time!