The old decals wouldn't melt down despite trying 3 different kinds of setting solutions. These were quick builds so I decided not to spend much time blending them in.
I think those 'hatches' where the red radioactive marks go are supposed to be white, but I couldn't find much evidence for that in pics...so I left them as-is.
Went for this scheme with the nose since I am not skilled enough to draw/cut an appropriate radius on the masking tape. Tried it a couple of times and just went with what works.
You can see the outcome of trying to cut the masking while on the sub (I'm not a smart man). Thought that would be easier for some reason...though I also tried drawing and cutting it on a mat, which didn't work either. Oh well.