omni paint question

I personally wouldn't mix paint systems. I've seen what can go wrong. Do it right, stick to one line.

That's not to say, people don't get good results with mixing systems.

Sidenote, Matrix is a low cost low-med quality paint. The clears UV protection isn't that strong.

If you do a google search comparing paint companies different lines *Tiers* you'll find the majority of the difference is pigment and UV protection which is the make or break for a long lasting paint job.