thanks, ladies!

On cadence, the reason I'm at 70-80/80-90 is because that's where my body seems to settle naturally. I've tried pedaling 90-100, but it just doesn't feel right for me. Maybe I just need more practice, or increased conditioning...? Anyway, it sounds like it would probably be better for my knees/ankle to stay with my fastest cadence all the time, though, rather than aiming for different ranges in different situations.