I love riding fixed, but not on hills. I'm too heavy to get up the hills on a 70" gear, the hills round here can be steep (think Cotswold Corker). I know people like MV ride stuff like this on fixed, but I just don't have the legs for it. I use my fixed for a flat commute and for pootling around town. When I take to the hills, I take my geared bike. I do sometimes use the 63" freewheel on the flip side of my fixed, but mostly it's geared.