I went up 2 jets from my "Stanton/good air" setup, which should've left me with a little wiggle room on the rich side...but I left my LM-1 sitting on our work bench, so all I had to go on was plug readings, and they looked perfect, and with the unpredictability of the weather/track I was having trouble guaging my slips...oh well, that's why we don't race on paper, right?!