I used the glow paint and it worked great as long as I had it absorb light then take into the dark. The problem is I needed it when it's dark and since its an EDC I won't have time to let it soak up light in a emergency situation because I will never know for sure when that will be. I am intrigued, however by the poster who suggest mixing it with another bright colored paint. IMO this would be the only practical way to use it in a real world situation (if it is compatible with the colored paint that is). I have a 640-1 with a metrolight tritium site and it works well. My 642 with a fixed blade site would not accommodate this method as would be the case with the 442.
I will try the two paint combo and report back, Rick.