EFI Live seems to be the resonating choice with Duramax owners. So I have to ask a question. If I really don't plan on toying with tuning and tweaking my truck all the time, would it be more beneficial to just send my ECM to someone and have it flashed? I guess my big question would be what if I did not like the tunes they flashed on, OR what happens if you suddenly get an error code on your truck? Without the scan tool, it is not possible to read the code or return your truck to "stock"? I know my questions may be basic to you guys, but I really want to make the best choice when I get ready to buy.