I would like to add a BIG one to my list...(this is also new to me)
VPD
Being able to run higher temp with more RH has helped in my situation in small spaces with extra heat. Im my exp it's a lot easier/cheaper to add humidity rather that try to take it away so I generally run higher temps...
But look at the chart for flowers...
At 45-50% rh which you VERY FREQUENTLY see recommended for flowering you must stay between 65-70°..??? What? Waaaay to low imo at least for the first 4 to 6 weeks. Increase to 55% rh and you get to 75°. Ok, great. But what about those of us in hot climates who battle the outside heat all summer? Look at the temp range for 60% rh in flower...70° to 80°!! That's huge, and a range I can work with. I will drop it down to the 65°-70° range the last 2 weeks while I flush, with an extra air conditioner that im not willing to run all the time. When it's on though, temps easily go down into the 60's with 35-40% rh. Get all those terps and purple fall colors goin at the end... thoughts?
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Fingers crossed