Wow, mansoons have rolled into phoenix and man it is humid hear. This morning we were pulling 95+ with high humidity. Man did the engine not like it. Had two dead sticks before i richened the high and low end a bit. It ran rough but stayed running at least. I still had unlimited verticle but no where near as nice as when there was no humidity last week. I guese the lesson i learned is to check you tune every day at the field