Basically you need to locate the input jack,effect input, output jack, effect output then wire it as per usual TB. It involves making a cut in the circuitboard trace. I’ve never done a sovtek smallstone personally so I couldn’t talk you thru it like I could with a sovtek muff. I could do it for you if I had the pedal but that’s impossible me being in OZ and all. theEHman could probably offer some advice about it.

There’s really nothing to it though,its quite simple.