I finished the 2012 Marathon des Sables two weeks ago. After 250km of running through the Sahara desert, my buddy’s Gorilla held up exceptionally well (see photo below). You should really consider specifically marketing your Gorilla packs for the ultramarathon and adventure racing crowd – there’s simply nothing lighter and better.
I tried to get my Murmur 2.0 to work, but my uncertainty about the shoulder straps prevented me from using the gear.
Nonetheless, my Gossamer Gear poles worked great and I hope to use your new Gorilla 2.0 during my next race.