ORIGINAL: andersonb
OK, I have spent a lot of time on this. I've tried numerous fixes including a Hyper 7 tank (2nd favorite fix) and the header tank mod. The best fix is the uniflow setup (hands down). No matter if your backplate is sealed or not you are going to have self-leaning issues with the savage tank. Go to savage-central.com and search for uniflow.
Best for you, you mean.... The "uniflow" setup made NO CHANGE to my leaning issues at ALL... I tried that before everything else because of cost. It just didn't do anything at all for me; I wish it had.
That OFNA tank made it run consistent from top to bottom though...