I logged a pull on a 2006 Denali and WOT at 1600 RPM produces 42% throttle opening and it very lazily opens up to 100% after that. I'm deathly afraid of the ETC tables and really hoping the answer's not in there, but I'm not seeing anything else intuitive in there unless I can copy/paste some other ETC table that won't brick this guy's PCM? I was figuring this was locked up in a BTM table of some sort, or do I just max out B0401 and I'm home free? I haven't downloaded his tune because I don't want to burn a license and fail at disabling his BTM. I plan to leave the tranny's TR stock since it's not an 80E but it is a 6.0L.