Still breaking in my '12 Sierra ec NHT so I haven't given it all yet, but does the traction control on/off make any difference in acceleration? Obviously tire spin will slow you down but does the traction control limit the power?
Just read this whole thread and it only makes me even more excited! Just joined the club with a '12 SLT xc with the max trailer pkg. Can't wait to get my hands on it! Thanks for all the info guys, one more day to go!