I'm working on an undec Athearn GP15-1. The sliding cab windows are giving me a headache...my first thought was to decal the silver along the edges of the windows, this would ensure a nice straight edge. But, as I found out the hard way, decals to not adhere to clear glazing. Despite having used an ample amount of setting solution and letting them dry for several days the silver decals just fell right off as soon as I touched them.
I really hate the thought of trying to hand paint them, I'm just not that steady handed anymore.
I thought about masking and airbrushing the silver, but I figure that would leave some nasty tape residue on the glazing.