I haven't shot it but usually something like that may need a bit of help getting through the nozzle on some guns and lay out flat...

I doubt you'd see any difference in build since what little reducer you add has little to do with the solids that are left when it evaporates.
None of the reducer stays in the paint, but it may take longer to dry than a straight mix so allow for that.


Give me ambiguity
or give me something else