This Pedal is currently available.
Dumble style Overdrive Preamp
The Cornerstone Gladio SC (single channel) - Is a Dumble style Overdrive Preamp designed to offer the same sound of the "big brother" Gladio but in a smaller and compact size. It allows you to mix in your clean signal.
While the Gladio double channel was inspire by the artists like Robben Ford and Sonny Landreth, the Gladio SC tries to take a step closer to the Steve Ray Vaughan sound, which was achieved using a Dumble amplier.
The Gladio SC is based on the Gladio 1st channel, with the exact same sound and controls, except the new CLEAN knob. This addition makes a very big dfference, and it's the one that could actually make the sound be closer to SRV.; the clean signal is taken directly at the input of the pedal and mixed back with the overdriven signal at the output, the CLEAN knob thus manages the volume of the clean signal. with the result of having a "clean layer" on top of the overdrive sound, which help a lot to achieve that texas-blues sound.