The only saddle I've ridden that's more comfortable than a B17 is a B66 - now THAT'S heavy. Comfort is far more important than a few grams. Also it's not like you're riding an ultra-light bike now anyways, so style and comfort are the way to go. Any Raleigh Grand Prix (I actually really like them) would look way better with a Brooks than any other saddle I can imagine. I can say honestly going from 16lb bikes to 30lb bikes, weight has very little to do with ride quality or speed so don't obsess over it.