I've been running it on the econo tune (60+hp) for about 4 weeks now. I'm playing around with the tuner, and I put it on the next tune (80+hp). Now, the manual says not to tow in this mode. It recomends towing in the 40+hp tune. in the near future I'll probably not tow more than 2k to 4k. Should I, change the tune before I tow, or just be aware of the "throttle position sensor" as TYREBOYZ puts it?