I know it is sacrilidge to say, but I'm thinking about switching back to a freewheel on my Langster. Of all the reasons why I might ride my geared bike over the fixed, one is the rolling hills here in NOVA. I find myself dreading the downhills, I just don't enjoy riding the brake and backpedal force to keep the speed down. Uphill is fine, and I love the feel of fixed in traffic, but my favorite loops all have significant hills. Anyone else have this problem?