Today when I started my bike I cranked up the idle higher than usual and rode. I always have run my idle fairly low because I thought no need to work the engine any more than I have to. WOW! It really helped with the bog. Before it was fairly substantial but now it feels alot better. I switch back and forth and its like night and day. This alone makes the bike feel much better, I can't imagine what the pumper carb makes it like.