Ah the joys of working with Alclad. I had the same hassles with it the when I used it for the first time, masking took some off aswell as handling it. But I have learned how to do it better, and will be more carefull in the future. As for NM<F I recon there is nothing that beats alclad short of doing foil.
I will be doing my Hasa f86f in the colours of South African Air Force during Korea. Also the same design as UASF (lend lease) but we had different roundals.
Just for interest sake, I jused Alcad pollished allu on a 1/72 P-47, abd didn't put any clear gloss down before doing the decals. It worked out very well and no silvering of carrier film is visable (academy decals)
I also didn't put clear over it after decals, and the pollished allu looks really nice. Maybe I was just luck to get away with it LOL
Theuns