Reading Mr T's opinions and looking at where the single stage is used, I have to ask if it's in "protected areas" like door jambs and under hood/truck areas wouldn't that resolve most of the issues mentioned?

Of course I don't have show cars, I drive the snot out of my stuff so losing some gloss under hood or such don't bother me.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.