First time back in a number of years; I see I posted a thread looking for a loop in 2010. The trails are really changing for the better. For one thing, it appears that many more are actually marked. The Glenn Beach (sp?) blue now diverts the entire fire road climb/descent with great single track as opposed to just half of it. That new red Meridan (sp?) trail is Diablo-light. I didn't think you could build a trail that steep these days (one-way in my book, but didn't try to climb it). In general, the trails felt more ride-able; maybe it's the 29+.