Technical Penatrol with a flattening additive

Has anyone tried using Penatrol with a flattering additive?

 

I used it as is, straight from the can. I really like the results.

 

No, I used it uncut. It didn't leave an overly bright shine like clear coat. Just helped enhance the old paint & make it a bit more crisp.

 

I used talcum as a flattening agent in military supplied o.d. paint on an H-13 repaint, no idea how or if it might be compatible with today's finishes.