this is where you might want to ride with hrm. I can pretty much tell by feel where I am on a climb, and I rarely go anaerobic. Slow and steady works for me, I focus on getting to the top at a pace I can manage instead of going for the push. If it means I"m not the first one up, so what. Use all of your gears to control your pace, and don't be afraid to gear down to keep your HR where you want it.

I find that this approach works great, and I can still see the imporvement on any given hill, through both climb time and which gears I'm in. This is where riding lots will help.

I second Veronica on the spinning too for helping with where to ride regarding HR>

Irulan