Datalog Datalog Datalog!
It’s really easy and if you have any questions ask your tuner and if he/she has nothing to hide then they will be glad to show you how to get setup. Get a laptop, a good wideband, and dedicate a little time to drive and record the data needed to determine if you're dialed in or not. Data-logging software is usually free just do your homework. If you have questions feel free to email me.