sanding primer coats?

I am refin-ing a Squier strat, more as an experiment / intro than anything. I thought I'd do something natural-ish, so I stripped off all the thick black poly, only to discover a bondo-d up five-piece mess underneath.

Plan B: Repaint it.

(I let my two-year-old pick the color. It will be orange. Bright orange.)

But first, I got a can of white Valspar primer. Sanded the body down nice and smooth with 320, wiped it down, and just sprayed a very light primer coat on. That's when I noticed a bit of texture in the primer (looks almost like little balls/specks of primer).

Question: Can / should I lightly sand this (w/400 or so) between primer coats? I was probably going to do 3-4 coats, or until the can ran out, just to make sure everything's good and covered.

Any advice would be appreciated.

I recently refinshed two guitars and I had the same thing happen with the primer.
I dry sanded with 400 wrapped around a pink eraser. Just light touchup strokes.
I'm not sure but I think I waited until I was done spraying the primer before sanding it.

If you're using those cone-topped Valspar cans, you can expect your color coat to spray the same way. I've used tons of Valspar aerosols, and consider this change to be about the stupidist thing they could have done.

For what it's worth, they've also reformulated their clear lacquer so that it balls up badly when wet sanding. It's a pity, since their stuff used to be pretty darned good as spray paint goes.

Oh, crap.

Well then, back it (the orange) goes. I can find some Krylon that is more or less the same color, and that I know won't go on like that.

Just to note....I finished up a body with 10 full coats of Valspar clear gloss. I let it dry for 3 weeks, and when I wet sanded it, which was minimally needed because it lays down so smooth, I had absolutely no issues with it. No loaded sandpaper, nothing. It went flawlessly. I kind of like Valspar. It has a lot of solids in it, so it's pretty easy to build up a clear coat quickly. Their sander/sealer was just as good.

Nothing beats SW HiBild though, which I started using not to long ago.

But on short notice, and because it's inexpensive and available right down the street, I'll be using Valspar more often. Just make sure to let your finishes dry.