I just got a Devilbiss Finishline 4 because it came with different tips,
one being a 2.2 which I plan for poly primer.
I've been spraying epoxy and 2k with its 1.8 tip so far.
This gun is really nice for primer.
Seems to have a bigger droplet size than my other guns which
is great for primer, less overspray and melts in better making
a more consistent finish.
I've tried it with its 1.3 for base and it's done pretty good for that too.
Haven't sprayed clear with it, My Iwata will still be for that.
This is a good gun for the middle of the road priced ones and is very versatile
with its many tips, it's also set up for the "bag system" like all Devilbiss
models, which I like to use.