If you're down there I'm suggesting you physically watch your bike being dyno'd before and after so you can see exactly where it needs to be improved and then what the result looks like, a reputable tuner won't have a problem with that as they'll be confident in their work. Subsequently you'll know first hand what was done and why, then if you do have any engine issues in the future (hopefully you won't) then there won't be questions over what was done. Its a very well trodden path for a mapper to blame an engine builder or owner for post mapping engine problems, I wouldn't want you to get your fingers burnt, that's all.