Hey Bob, and everyone else , check out this video on using Humbrol's new Decal Fix. I will be trying this stuff out for the first time on my Hellcat. Hopefully it works as advertised.
www.youtube.com/watch
Also Bob, should you get some Solvaset, which is awesome by the way, be sure to test it on the decals you will be using as it is very hot stuff and you want to make sure that your decals will react favorably to it.