Brake pads are relatively new there was just enough piston release to release the pads from the discs. These are the 4 piston K-H brakes, no major piston retraction into the caliper body.
I think the hoses may have been damaged from being bent when I hung the calipers, and moved around while removing and replacing the UCA's. They were older, may have started coming apart internally. I didn't have a second person to inspect them under pressure to see if they were expanding.
At any rate I now have fully functioning brakes for what I consider a reasonable price.
