[Lona]

I'm confused regarding all the precision some use to set the timing on a stock motor. I set the timing using the pin method but set the spark lever one notch down (not full retard). Using a jumper wire from the points arm to ground, I very slowly turn the motor until a spark indicates the points have just opened. Now, I have some leeway to adjust the timing slightly more retarded with the spark lever or much more advanced while driving depending on road conditions and speed. Why is all this precision needed with timing indicators and timing lights when the spark lever gives you a wide but manual choice of timing settings? I must be missing something as some of the respected gurus on A motors seem to adhere to being exact in setting their timing. Am I doing this all wrong?

Glen