Thank you very much guys, paint is my favorite part of building, so i like to challenge myself from time to time, and just play around with different ideas. If i stuff it up, "it's only paint", re-do it.
Stan, i only use top quality tape for masking over paint, 3M blue, which is a low tack painters tape, and have just discovered Nitto-Denko 60 day tape, it comes back off easily with out lifting the lower layers of paint. (hopefully).
I lay it on a glass surface and slice it into strips with a brand new hobby blade, that way you get a nice edge.
cheers, Dale