I bought a Tonebone TS off eBay ($99 +shipping used) and got it set up this morning. Had to run out and buy some cables. Read the manual, re-read the manual, hooked up the cables, checked them 3 times then fired up the AD100VTH and got sound. Checked the cables again (didn't want to blow an amp), turned on the AC100CPH and got sound! NICE! NICE! NICE!
The Tonebone works as described, allows switching between a SS and Tube amp while using one speaker cabinet. Got the pedals set up, now need to spend some time testing and balancing.
One more thing, there are no pops, noises, sound degradation or volume change when switching between amps, just one tone to another.
Very impressive box!