Yeah I hear you on that and I appreciate your reply it seems like people get mad when other people try to explain something. And if they're right they would rather just get rid of the people that know more than they do. I tuned it about 4 different times I actually am making progress it's just on the gen-5 GM's there is so many tuning tables that open up but I also have HP tuners Believe it or not SCT derive advantage 3software actually offers more tables and part meters for tuning