just as I thought the TRE wont work for me. I have my Bazzaz setup with -7% for 6th gear(for better fuel economy,I commute). If I was to get the GIPro ATRE would I just plug it inline with the Bazzaz, or would it be better just to go with the GIPro X-type? No TRE, less $$, and it doesnt look like it plugs into the GPS.