trim or not to trim?

IMO you don't have too many leaves on there so I wouldn't trim any, but generally if your plant is really bushy and you can remove a few of the center fans which will allow more light to penetrate you should. Also on the edges of the plant that aren't seeing any light you can take those fans off, my rule is though I pull leaves only when necessary all the way up until the second week of flower. After that I don't touch them, also with a 150w you want to keep your plants pretty low and bushy. I recommend a 3 week veg if your growing taller plants (no more than 12") and 4 weeks if your growing 2 bushes. I prefer to use FIM with a 150w as it just takes to long to get a top worth cloning IMO with that light. Make sure if you are taking leaves off later that you aren't taking too many especially at once, try not to take more than a few every few days. Good luck and happy growing.
KnB