My bike is currently mapped for a 13.0:1 a/f ratio. It's set to 13.2:1 in the lower part of the rev range. I'm thinking of doing a full power map set to 12.5:1 a/f ratio. I'll switch maps as needed. Anyone know any pitfalls running that rich. I've heard on cars, that ratio is hard on the senors. I won't use it all the time, if this is the case. Obviously fuel milage will be effected.