Same here. For toe the side to side precision is not THAT important, so what I usually do is measure the steering links to be the same lenght , then finetune the angle I want "on eye" and the last thing is to make sure that it's ok by trimming the car through the transmitter, it's not good to make major adjustments with the transmitter trim though, then you have to start again. If I need to record my toe for a setup-sheet or whatever then I just take a caliper and measure front to rear difference and that's what I put in my setup sheet in milimeters.