Stub You could try using erasable colored pencil (Crayola sells them) to mark the wedges (which are what you want to keep). Use a bright or contrasting color to make the wedges stand out from the connecting lines (which you will be ignoring).
That is a great idea!
I change the fingering markings so often from the printed ones that my brain now ignores any fingerings that aren't in my handwriting. So sometimes even if I'm doing the same fingerings as marked, I write over it in forScore. Same with pedal markings, the original ones are printed so lightly that I hardly notice them but if I want to pay attention I write P and X over them. Colored pencils might be able to retrain your brain to pay attention to only your markings.