What about a late 60's Superlead clone with a Dumble-like smoothness and midrange complexity?  I like how the Mid-Boost switch on my Overtone adds a nice gainy midrange boost to the sound without really changing the tone too much.   I really dig the tones of EJ, Bonamassa, Cream-Era Clapton, etc.  Specs: 100 watts (4xEL34 or 4x6L6), standard EQ +presence, 4 inputs like old Plexis, footswitchable Mid Boost like the Overtone, dark-normal-bright switch, Marshall style FX loop, post phase-inverter master volume.  So basically a cheaper version of Joe Bonamassa's Category 5 signature amp.

yeah, it sounds like you are referring to Joe's Cat 5 or perhaps the Carol Ann OD2. Not speaking from experience, mind you, just from hearing Joe etc.  From what I understand of the Category 5, it is described as a Super Lead with a bit more gain, and different mid voicing. I think a super lead with a 5 way mid sweep control, with sweet highs and maybe make it HRM. Sounds cool.