Sounds good :-P. I have the same HLG driver powering my 3590 cxb's (3500K) and I used similar distances for vegging. HydoDan runs at 16" (above post). I ran at 22"-24" for VEG. idk about sprouts, I use flouro for my seedlings until 5th leaf set and topping, then move to tent with COB's at 24"...