yup, Im much more of a spinner, my knees just prefer it. On one of my bikes I sometimes spin out my 50/12 and get to between 65 and 70k, and looking at a gearing calculator once, I saw that that comes out to about 120-125 rpm or something, but its been a while since I looked at the chart, so I forget the exact number. Thats a short sprint though, so obviously dont do that often, more just to say that my legs and knees are more comfortable at higher cadences and regularly spin up on my commute.