For me, the color glow PDs' flights are quite similar to the FD2s, just faster with more fade. Granted, I broke my finger and couldn't test it extensively, but I didn't see too much turn out of the FD2. My opinion may change once I get a bunch of throws in, though. (FYI, I max out at 475' or so of golf d, so not quite as much as you. My longest was near 600', thrown for golf d, not all out d.)
I bag 2 fd2v3. I have a pink one with lots of color and a blue one that has much less color to it. My pink is noticeably more stable than my blue and gets little to no turn (flies very close to the instinct) where my blue thrown flat and hard leaks right maybe 5-10' (not what I would call turn). So depending on how an fd2v3 molds up it can either be very similar to an instinct or slightly less stable. I do know my dark maul PD was the straightest of the premium plastic PDs I have thrown.