They are sitting on the floor inside for now.

I agree if you have to put your ear to it to hear it....its not that big of a deal. But there was one song I listen to where I was 8 feet from the speakers and I thought it was making something vibrate....so when I got up and looked there was nothing around them vibrating....it was the port noise and it was pretty loud. I would say 99% of the time it wont be a problem...but it is there. The subs were moving a LOT of air for me to hear it that far away....probably MUCH louder than I would run them out side. I also listen to a lot of rap and bass heavy music that could be the other part of the problem

Seems the paint issue needs to be addressed. A second coat for sure...maybe some sort of paint booth too. But mounted hi up you wont see these issues.