Dropped around 65 pounds over the last 13 months and I've found the hills that kicked my butt last summer are not bad at all anymore. I just say "legs, I need a little more power to get over this" and they say "you got it, boss!". There is a short but very steep hill about a mile from the end of my usual evening route. I was going up it as about 3-4 mph last year, Went up it last night at 8-9 mph. Whoo-hoo!

Not sure how much is due to increased strength and how much is due to not dragging the extra weight around, but it feels good. When I drop some more, I should fly up the hills, relatively speaking.