I know...another one. Sorry. This one is a bit more direct however.
In rescribing to replace raised panel lines, I've been readin where most people remove the old raised lines first. I was intending to leave those and use them as a guide. However, if I decide to remove them first, how would I know where to rescribe? One trick I've heard was to scratch a crayon, pencil etc over a piece of paper laying on the part. But I'm not sure how I would transfer those markings back onto the part after sanding off the old lines.
Any ideas or tricks to this? I'm open for any techniques as I'm trying to find one to adopt for myself.