From everything i read it's not that it makes a bigger spark, it just re-directs it. Even the gap remains the same as stock so it should be no harder for the ignition to jump the gap, so the ignition should be seeing the same load AFAIK. But i will try the new ones as stock. But with the secondary open they have to be replaced anyways unless i'm missing something here. There are a lot of coil problems with many new triumphs so i'm sure they're toast. Tho i have no idea why the bike runs great aside from those vibes. The coils apparently aren't very reliable and are one of those triumph bugs like cush drives and a number of other parts that seem to fail in large numbers from reading the forums. I never heard of MSD, only nology. Are the nologys basically the same thing or is there some benfit to the MSD coils, and do they fit our bikes?