Please make sure you know what you are talking about prior to making fun of people who do. Your logic works...on cars that use different ecu parameters. Catch up with the times and read or try it for yourself like I did. Meth will not skew the trims enough to even worry about them
How much is not enough to worry about? When should someone be worried that the pcm is correcting too much? I'm just wanting to know from someone who seems to know a lot about this.