So I'm starting to ride a little more aggressively downhill, but I'm still not getting far enough back on my bike and occasionally endo. I think my problem is the trails here are a lot of up and down; If I drop my seat for a descent, the intermittent climbs are a b*tch. But if I don't drop my seat, it's hard to get back and low enough for the steep downhill parts.
So two questions: How much/how often do you adjust your seatpost on singletrack rides? And does anyone have experience with the auto-adjustable seatposts like the Gravity Dropper or the Crank Bros. Joplin? A couple of friends have them and swear by them. My concern is that they might be finnicky or gimmicky...and they're certainly spendy. Any opinions?