[Shotimes] Help with Brake Bleeding

[mhelpinstill]

Need some help with bleeding my SHO right rear brake caliper.  I have
bled the brakes before and never had a problem with the standard 2 man
operation.  However, tonight after I replaced the pads I could get only
a trickle out of the bleeder valve on the right rear - all others bled
fine.  Put the wheel on and lowered the car to reduce problems from the
rear proportioning valve and still had the same problem.  With bleeder
valve open brake peddle becomes firm half way down - something is wrong
- Help!

Mark