I had one of these. It’s definitely not a DS1. Not nearly enough gain, and very warm. More like a TS style overdrive for sure, but with a little more gain and headroom on tap, IIRC. The “Prime Distortion” was the sister pedal, and had that chainsaw DS1 sound a much more gain. There was also a “Classic Overdrive” in the series (all of these were GC exclusive, with “tribal” graphics) that was very vintage OD low gain style.