If you don't know by now, (after my 100 posts a day you should

) I ride fireroads and a few single tracks. Often steep with a lot of ruts and rocks, and loose sand, so the downhill can be pretty hairy if the front end isn't up to snuff. I just put on Panaracer XC pro 2.1's on it the other day, and used it today for the 1st time. I think as in a few of the reviews, this tire isn't perticularly stable for fast downhills with often rough surfaces. But it works great on the back. So i was thinking i could remove the front and save it for when the rear wears out and get a better front for my purposes.
What would you all recommend for my purposes?