Usually means poor tuning and higher EGT's.. Shift on the fly uses the same trans strategy so that also is not good eitheri have a 2005 with the Edge juice with attiude platinum, it ranges from stock to stage 5 or stage (6) if you unlock it for some cash from edge. it controls the trans. really well with more options than the bullydog pmt or the sct. as for power love it. i am sure it is no sct, but with the stage six unlocked it puts down major smoke :woot: . plus it comes with safety features so you don't melt down your investment.