When moving fast across very complex terrain, I've found that my Apex- perhaps because of color, I'm not sure- makes the field in front of me seem flatter than incandescents. I tried a NitePro (normally used by cyclists) and it seemed significantly easier to use and I tripped over stumps, waterbars, rocks, less often. The problem is that the mount for the light seems easily breakable, so I was curious what else was out there.
Prior to the Apex I had been using "hybrid" headlamps- a black diamonds, princeton techs, but the incandescent bulb wasn't very impressive. I'll look into the Silva, but I'm also thinking that if there has been any progress in the hot wire world then the hybrid model- with LEDs at backups- could be interesting again.