No, I just replaced the caliper and that cured the problem permanently. Obviously the problem was in the caliper.

 

That would definitely seem to be the case lol

I'm just wondering with mine though...
like I said earlier, if the brakes heat up and start dragging, and I open the bleeder valve, the brakes release. If the caliper was stuck I just wouldn't think it would do that. Unless this is just the early stages of the caliper starting to go?