I definitely hear what you’re saying about the weigh and sorry about your back! I think my issue with the 5’s stems from growing small plants due to my restrictions. The autos roots never consume the whole bag and when growing photos my height and veg time limit them enough to not take over the whole 5gal either. So a lot of wasted water, etc, and likely stayed water logged. All the 3gals had roots to the edges but not bound and like I mentioned the quality and quantity seemed to be better. I’ll keep y’all in the loop with this next grow.