Do you have a chance to compare setups to the person you're growing clones from? Spotting the differences and asking them simple questions, why do you vent that way, why is your reflector like that etc. will teach you a lot
Any grower I know expects an onslaught of stoopid questions any time I'm over since I've started
Sucks about the HPS, the way you're planning to supplement the red of the HPS with UV sounds solid and I'd love to hear how it goes. Have you got anything providing a small bit of red during veg or is that the dreams for a few harvests down the line?
best of luck with the grow, even with bulb shit it'll still be weed in the end