Is lowering the flame height adjustment on an AE the only way to lower the feed rate. Still battling clinkers with barefoots (have never had this issue with them before) . Some on forum have suggested feed rate needs to be lowered with higher density pellets but this is only way I know of to lower feed rate on an AE. I am at -5 now any ideas. Here are my settings--hardwood fuel...heat output H...flame -5....Fan on normal...Altitude normal.