I have read that these are not too accurate but wanted to post this as I wanted some other opinions. I have been trying to get some logs recorded so that I could sift through the data and try to analyze areas that can be improved. The following is a chart from one of those logs on the OTS Cobb stage 3 93 tune. I am looking into getting a tune from Stratified but still have research to do on tuners. Recommendations/overall experience with tuners welcome.