I've been running a Smarty stacked with a True Torque Power Module for a few months now. I love the power and acceleration. I have it set on #8. I don't run any timing with it. Just maximum torque and duration. I have 4" exhaust and a BHAF. I'm getting ready to tow to a car show next week. Trailer weight will be about 7000 pounds. What's the optimum settings for towing with the Smarty?