You're right... the BEST SOLUTION is to NOT have the problem (NO runs!).. but between my poor eyesight, never enough LIGHT, and not being familiar with the base/clear paint... That's probably not going to happen for me (but I do prefer doing ALL my own work).. I think I'll just paint anything that I PAINT in the future with single stage (adding some clear into the final coats) which I'm more familiar with doing and less danger of sanding/cutting thru..
And when my '55 Nomad (metallic regal turquoise) has to be painted... I suppose I'll have to find a base/clear expert to paint that one!~
My 'other' '57 Nomad orig color is tropical turquoise/ivory - non metallic), so it'll get single stage.. and I'll try that one myself.