I agree that it can add compression, which might be helpful to some players (especially live) - but at least with my right hand, it was wildly unnecessary the vast majority of the time - I definitely agree that klones are generally the best for the purpose, though, if you're dead set on doing it.
But I 100% disagree that it sounds any better, especially under a microphone - it might make it more compressed or more gainy, but honestly it takes away from what makes a larry's gain sound so great and magical in the first place and makes it more "ordinary" IMO
The whole idea (at least for me) is that the larry exposes your technique and forces you to straighten out your right hand and rely on that for the compression. Once that's sorted, you're rewarded with the tightest tracking, most usable high gain that exists on planet earth.