[greglepore]

I have friends that swear by gatorskins. They don't have lower rolling resistance, although there is a trend toward wider tires, which do when mounted on wider rimbeds designed for them. Gatorskins don't help at all with pinch flats

I do use nothing but tubes with removable cores, and run Stan's sealant in all of my tubes and tubies. It has practically eliminated flats. Messy to install, but works like a charm.