No, not yet. I'm not really "training" for anything. I'm just trying to get into and stay in shape. Although I guess I'm training to have the strength/stamina for longer rides.

Yes, I often sprint up short hills too, but that's not what I'm trying to get at. I'm wondering about the benefits (or dangers) to hitting a long hill hard to the point of not being able to go an more and not being at the top yet and then trying it again. On a short hill you get some reprieve too soon. On a longer hill you get to work to a point of "I can't go on" and then take a short break rolling down and doing it again. I'm thinking eventually that "long" hill won't seem so long. I saw someone doing something like this the other day so it got me thinking.