Trimming/Pruning Question

I'm a few weeks into flowering on my first grow, unknown genetics, seeds came from a friend who only told me "them are hybrids of hybrids." My question is, should I trim some of the smaller leaves towards the middle of the canopy to allow more light to the lower bud sites, or just leave it be. On this bushy lady there are definitely some lower branches getting shaded by the upper leaves. I'm running a 150w HPS for what it's worth.

Do not trim ! Think about the leaf as an engine for your car. The shaded area is getting it's power from those leaves. Just because there in the shade doesn't mean thier are lacking the power of the whole plant. If you must , tuck them under the branch next to it but don't take it off it's like muscles to us.