I leant something very important today (Thanks Twigman). The lapcounter in ARCPro requires that it must *first* detect the (black) slot guide, *then* reads the ID from the IR LED. This means that you can't put the LED ahead of the slot guide, using a SureChange guide (for example). This was bad news. That was to be my solution for my front motor cars (Fly: Panoz GT & LMP, Dodge Viper, Corvette C5). I don't care for moving the motor, but... Anyway, I wonder how others have digitised these cars. My track plan puts at least a half straight before each lane changer; might I get away with placing the IR LED behind the front motor - 25 to 30mm behind the tail of the slot guide?