You a canopy area limit grow? If not on a count but rather a square footage limitation then labor intensive and veg intensive trees are going to yield less per year than a proper SoG.
Gram per watt is a doable standard. If your open to doing what your consultant advises you should enjoy excellent yields.
My biggest issue as a consultant myself is customers that don't follow advice.
I do gram per watt of flowering HID all day long. So I know what it takes. I have had...
If there is any leaks in your hood you will have the potential to vent odor bypassing the carbon filter.
Outside in: Duct, hood, blower, filter: will solve that issue