Hi there, 230k on an '07 CRV AWD.
Has new brakes and rotors all around from about 10k miles ago.

One day had a wump wump wump in town around 30mph with a rocking left to right feeling with it, from the right rear and thought it was a flat. Pulled over and nope.

Pulled back onto the road and the car seemed to slow on its own and not coast so much. A couple turns later and it resolved. (more to this "turn" and "back on the road" (different road surface) later)).

Over last couple months has happened randomly.

THEN one day I was on my friends sloped driveway, I had the parking brake on. Back out and go drive away and wump wump again. Pulled on a side street and tried hitting brakes hard, etc to get it to resolve and didn't really work. Pull over all the way off the road (from paved to non paved). Sit there a second to think "if something's dragging, I'm not gonna go catch a wheel on fire or something so I'm taking side streets home with the wump wump.....and when I got back onto the road it stopped.

So I get home, pull the wheels and calipers, grease the slide pins and put it all back together, thinking maybe a binding caliper.

Give it some days to be put into motion and then randomly did it again.

I was at same friend's house, and I put parking brake on, and leave, and could hear and feel it drag some. Ah ha! So the light bulb in the brain came on, and it's not a caliper, it's after I have the parking brake on, and clears up when I hit a different road surface to so-called 'knock" whatever is binding loose.

I figured maybe the "star" shaped adjuster on the parking brake section on the back hub was set too tight on just the passenger side or something.

So I get both back wheels off the ground and did some process of elimination:

1) put parking brake on two clicks, and go spin wheels in rear by hand. They both had barely any drag by hand
2) redid parking brake to four clicks, and go spin wheels in rear by hand. They both got pretty hard to turn by hand.
3) redid parking brake to six clicks, 8 clicks, etc and by 7th click or so couldn't turn them my hand.
4) released parking brake, the driver's side went back to freewheeling by hand 1 1/2 turns or so when I spun the wheel. Oh and well whattya know, the passenger side wouldn't budge!

So I'm thinking well I have new rotors and pads, but never really did anything with the parking brake shoes, and for all I know they're different thicknesses on each side. So I go to adjust the passenger side adjustment "star" (which to this moment I still don't know which way to turn the star (clockwise or counter) to loosen or tighten but I just tried various counting of the adjuster "star" teeth until I got both sides to feel the same, and then with this whole binding situation I turned the passenger side "star" looser a couple of teeth.

As it stands the parking brake at six clicks makes the driver side impossible to turn, which it should, and then the passenger side I can barely barely turn it with effort. Basically I have it so that the parking brake has six clicks to make the driver side grab where I can't rotate the wheel, and then have the passenger side at 8 clicks (looser than driver's side) where I can't rotate the wheel.

So as it sits right now, even though the passenger side is more free-wheeling and easier to turn than the driver's side, yet after I disengage the parking brake the driver's side lets go and goes back to free-wheeling, and the passenger side is still seized until I drive the car, feel some wump wump, and hit a bump and then hear it "let go".

What the heck are the next steps?