I've thought about the 34 Megarange, but I don't like the 34->24 jump. I'm finding the 30/25/21/18/15/13 all to be usable gears on my current freewheel. Still, it would be about the extra 1 gear down, I have to admit, and not far removed from the price of a chainring. Plus, it'd have tighter gears for those few roads that are flat... Thanks for point it out, something else to think about.