you appear to be outnumbered!
I’ve done that with some of mine. Hesitant about a few though they were meant to be spots to start with. I don’t think I should run those close to the canopy (sometimes I am 2 inches away so far) in such a small cabinet. I did remove the diffusers from some of the smaller ones.
Here is my just completed grow and the lighting is cobbled together from off the shelf parts as well.
Have you run the 100W equivalent Cree BR30 spot led’s without a diffuser? If so how close?
Tent is looking good! I hope to add another, taller cabinet for flowering and justveg in the current one. but it is what it is
Hey there I figured out how to shout!!! 
add three minus signs on the next line