Groundswell's a super overdrive, really, it's as good as they come. Only better, if You ask me.

Yes, I repeat myself.

Perhaps You should ask if Tom would build You

a custom one with an added gain stage behind an extra foot switch. Stacking Groundswell gain stages works awesome, it has a brow raising amount of wonderfully open gain, of the roaring sort, without any low end cut.
Oh, and by a coincident, here's a pretty pic of one:

- groundswell custom.jpg (21.42 KiB) Viewed 2579 times
Controls are Vol, Gain, extraGain, and Volt. The right footswitch is on/off, the middle engages the extra-gain, and the one left is a momentary latch for boosting the second mode even a tad more, just to get the feedbacks and pitch harmonies right
To avoid unwanted funny compression, do not place anything with a hi-gain /hot output before the pedal. The lovely Groundswell overdrive is based on
really overdriving the gain stages and so comes a tubes-go-sizzling-overdrive so loud it'd make Lemmy smile. BUT feeding an already hot signal to Groundswell can overwhelm the circuit, making it go gulp, then vomit compression, and You are to wear a t-shirt saying FAIL.

You might want to avoid that.