RE: touring car show down over here !!!
If you insist...I'm racing for 10 years and I can't do it (accurately) by eye. You must have an amazing eye for angles, and a brain like a computer. Either that, or like everyone else, you just 'believe' you are spot on. Have you ever checked? Bet you $100 you're miles out, trust me. Not wanting to start an argument, but I've met many people who claim doing it by eye is ok, until they realise. It's fine for off road, but not touring cars. If you are racing, then a kit is absolutely necessary. At least tell me that you use a caliper!?