I feel for ya' brother, went through it myself a month ago.
Now the right rear is stuck and I am out of energy. I heated the rotor for about 15 minutes and it was smoking, but not moving no matter how much I hit it.
Me and my buddy sorta saw this too so I "spun" the rotor while he kept wailing on it, therefore all the impact force wasn't going on one point of the disk, which might get it slightly crooked and cause it to catch on the hub. Not likely but a slight possibility.
I would've liked to paint my calipers but they were a pita to get off so they can stay the color they are, I ain't taking them off again !!
