Hi Guys. Another rainy night here in WI, down to the dungeon I went. I took what I learned from your posts and I tried some things. Btw. This is neither here nor there. My tests are not the ultimate authority. I am just letting you know what I observed and how it worked out for me.
(Using my Badger 155 Anthem brush)
1. No thinner, straight from the bottle. The paint sprayed through the brush, but I found the finish too grainy, and it was a bit odd to apply, somewhat of a struggle.
2. Thinned with a little water. The paint tended to sperate on the piece providing uneven coverage. (Blotchy). I quickly abandoned this option. For the record, I used tap water, not distilled.
3. Thinned with a little bit of Tamiya X22A. (Thought I'd try it). Nope. I had terrible paint separation on the piece. Abandoned the idea.
4. Thinned with IPA. Now, we are getting somewhere. The paint covered well but it did tend to dry a little fast, as Patrick stated it will do. I found myself applying heavier coats in order to keep the grain down. But thus far--this was progress. I should mention that I didn't need a lot of thinning. Several drops in the paint cup was enough to cut it nicely.
5. Thinned with IPA, and two drops of paint retarder. The paint sprayed on extremely wet, and it was slow to dry...obviously. Coverage was good but because it went on so wet, I had to be careful to not cause runs. This was too iffy.
6. Thinned with IPA, and two drops of flow improver. Bingo! Now we are talking. There was good coverage, and it was not too dry. Of all the options, this fought me the least. I was able to put the paint on heavy or light without fear of grain buildup. Also, though it went on fairly wet, it dried just quick enough where I didn't fear drips or sags. This worked well for me.
Once I cleaned the brush, I went back to inspect 4, 5, and 6. Grain appeared to be the same on all three, maybe slightly less with my using the paint retarder on step 4. However, that piece had a tacky feel to it while 5 and 6 were dry to the touch. So, the retarder did its job, but I don't see any benefit to use it.
Overall, I feel the grain was pretty small. For my taste though, I'd want to give it a light sanding. I will do that tomorrow and maybe do a tape test too.
That's how it went, guys. I will report tomorrow about the sanding, just for grins.
Thanks again for the help.
PS: I found the paint to be low odor. I am sensitive to fumes and this did not bother me much. In fact, the IPA bothered me more than the paint did.