While I am brilliant at some things in my life (sarcasm, walking dogs, drinking vodka, etc.), I am ignorant in others. One area where I am in the dark is automotive electrical. The TH200 in my Cutlass has never shifted to my satisfaction, and now appears to be stuck in 1st gear. It is soon going the way of the Dodo bird. A buddy had a formerly (pulled out a few years ago) good functioning TH350C that I have acquired. I intend to install it after changing the front and rear seals and filter/fluid. As much as I drive my car the lockup function would be handy for improved MPG, but I don't know the best way to integrate it seamlessly into my setup. In my mind, IF (another issue) my cruise control was functional that would be the ideal way to engage/disengage the lockup. Cruising down the highway, hit the cruise button, lockup engages, eventually brake to slow down lockup disengages??? Any thoughts?