Have been burning remainder of my NEWP stock. I am down to 1.5 tons of NE's and 2 tons of barefoot super premium. Should have switched last week, but ran out of time to bring in Barefoots. I am expecting better results and so far, according to my Raytek Raynger ST, I am already gaining about 50-55 degrees better at the heat exchangers. So far, so good. I watched the initial startup and nice clean flame.