I had the same problem, but mine just plain went dead! Who da thought a spark plug would just not work at all? He sugessted a slightly hotter plug(3000 feet), and change to 40 to 1 after the break-in period. It´s been fine ever since. I don´t nail it very often and only for about 5-10 seconds, so I think the 40-1 is ok. If I was on a track, I´d go back to the 32-1.