Spent some time researching the various BD transmission controllers last night. Having the 05 with out the OD lock out makes towing frustrating. The truck will physically pull many grades but gets really hot and I need to force the downshift while in T/H. I do not have an exhaust brake and most likely will not get one for a long time. I'm thinking about just running the BD o/d lock out. From my reading you can still use the t/h shift logic with the o/d off? Or run standard shift logic with out going into o/d? Is there a display that shows which mode you are in? I also have a manual lock up switch, thing I do not like about the manual switch is that if I am in D it just wants to up shift unless there is a moderate amount of load. But I guess with the o/d locked out that would not be as much of a problem? I have a tow coming up from Vancouver BC down here to SF CA so would really like to have something in place for this trip. Thanks guys.