Larry is the next big thing, well at least if you're talking about tyres larger than three and a half inches wide.
The Endomorph's tread was specifically designed for soft conditions such as packed snow and sand. Larry's tread is a bit different. The low chevron ribs are still there, but they connect longer, dagger shaped knobs. The knobs are all the same height, so as they wrap around the casing the result is a more rounded profile compared to the Endomorph.
All this results in greater steering control in loose and soft conditions and on firmer ground, without the self-steer of the Endomorph. Larry is a great front tyre to Endomorph's rear, and a good all around tyre for your Pugsley.