I take back what I said about the Reptiles being the "perfect combo" for a tire that's equal meant for parts trail and mud. Everything about the mud still stands; these tires are great in the sloppy stuff and haven't failed me yet. Trails...well that's a different story. They do fine on dirt, sand and loose terrain, but can be downright scary on wet rocks.
UPDATE: 10/3/12 - I posted a more detailed update which can be viewed here.
UPDATE #2: You can read the continuing story here.
Update: 7/23/13 - Pictures disappeared, fixed 'em.