Safechav this ones for you!

I am getting my flywheels skimmed tommorow, and have one from a efi rs turbo and one from a efi 1.6. both have cps markings on them but the standard 1.6 efi one is in better overall condition, and I was going to get it skimmed and fit to the rs turbo engine. Are they both the same anyway, they do look it but have different numbers on the back?
Anybody who know please answer as I dont want to waste money!!!!!