The paint on my 69 bird right now is Omni.
There really isn't anything wrong with the paint, other then it's transparency issues.
As long as a person plans for this, and orders extra base to compensate.
Then shooting it is no big deal.
Wanna know of another really nice in-expensive product?
Limco Hi-solids 2k clear
Painted my buddy Mikes 67 Chevelle 3 years ago, used D.B.U. and Limco clear, because We forgot to bring the clear with us to my Dad's shop.
The only thing the local paint jobber had was the Limco.
$75.00 for a gallon of clear, catalyst, and reducer.
It was a pain to rub ( partly because I waited 6 months)
But the gloss and depth are amazing..
3 years so far, no yellowing or delaminating.
And very easy and forgiving to spray.
This from a hard core Spies Hecker guy