Good idea but, Toggle switches won't last long on high amperage circuit's like the one you spiced in to {50 amp}. You should have the switches controlling a couple of relays that would cut power to your esp and tc. Also i think a cleaner way of doing this would be to use the esp switch to control the two realys , or just disconnect one of your abs wheel speed sensors and it will disable your abs, esp, and tc . When your at the track that is .