The terp pearls/SiC balls also zoom over the air intake holes, so they may be adding turbulence or having some affects on the incoming air from rolling over the carb cap holes? I dunno, spit balling... or SiC balling. Anyway... I tried again and spent a few days dabbing at 630f with 6 SiC balls. My lungs still cant hack it, it was fine for a few days but after that, lungs are complaining again, coughing a lot and not coping well. Back down to 580 again. WHEN WILL I LEARN!?