Maybe this is a dumb question, but I can't really find the answer. I am getting a 2nd wheelset just for autocross and I'm wondering if I really need TPMS. If I put them in, will I only need to program them once and be ok for changing back & forth with the street set or will I need to program with every change? I am inclined to leave them out being I'll only have the light during events. Thanks for the help!