I'm not sure how often you visit the other areas so I'm posting this here. I hope you (or anyone else) can chime in on this: I used my Edge evo to monitor my AMPGs for a week after I removed my TB spacer. The most I was able to get was 13.3 AMPGs by the end of the week of highway and freeway driving. I then put the TB spacer back on and by the second day I was already getting 13.9 AMPGs and was able to get 16.2 by the end of the week of the same type of driving. The TB spacer I'm using is even one of those cheapy ones found on ebay.

Any ideas why?