Yeah I know.....I was debating it. But, as I get older, and think more and more pleasant thoughts such as "gee, having the front tire blow or my aluminum bar abruptly snapping in half right now would really, really suck" while bombing downhill, it makes me realize that I'm pretty happy with keeping around 36 to 40 mph.

Plus, it seems that on many of the downhills around, the pavement really blows at some point or another. Nothing like having to slightly bunny hop the front tire at 35-40 mph to "lighten" the bike to avoid a bone jarring hit. Doing that at 50+ wouldn't be my idea of fun, since to begin with I'd probably hit the sections of bad pavement before I knew it.