Hi Doug,
I had an old (like from the 90s) small jar that came in the Polly S "weathering set". I just picked up a new jar last month (new label). I wanted to compare the old to the new. I took the old (mixed VERY well) and thinned it "50/50" with distilled water. I did the same with the new jar, again mixing VERY well. I sprayed both with a Badger Patriot "Arrow" AB around 24-28 psi. Both laid down nice with the occasional white build up. However, with very light applications, the build up was not evident. When both dried, they were clear and dead flat. No white marks, streaks nor opaque look whatsoever. I was very pleased with the results.... just my findings. Hope this helps.
- Mike