The JBH is still making sweet sounds. I've decided to leave a pair of the JJ EL-34 II is the amp for now. They seem to offer the right amount of detail and lushness to the Junior 8's that keep me engaged during my late night listening sessions. Even at really low volumes I get nice definition and realism.
One other tweak I made was to put a pair of -6 dB in-line attenuators on the inputs to lower the signal. This gives me more play on the volume knob and still leaves me plenty of headroom to spare. The amp is rated at 8 WPC and seems to be more than enough for the speakers.