[Jerry Clayton]

Patrick---I rereaD MY POST AND IT MIGHT HAVE COME ACROSS A LITTLE STRONG---SORRY about the caps---

You will be fine on running your engine from whatever marks you make as you will have repeatability on your engine---however, my point is that if you are going to deal with several engines you must have a system that is absolute for the repeatable results as you tune after any changes to the engine or possibly on other cars( multiple cars/engines)