Agreed. They have their place. I think if I were commuting 10 miles or less urban/high traffic/gentle terrain I'd still be using them. It was the grind of a 40 mi rt daily for about a year that got me burned out on them. They are alot slower than comparable pnenumatics. 1-3 mph, easily. And climbing the one 18% grade hill every night didn't help either. Like I said in my earlier post I still have all 3 sets. If my life situation changes radically and I'm commuting urban again I'll be set.

For me SMPs bridged the gap between 100% flat free and flat resistance w/o tire liners. Used Mr. Tuffys for years, but on an mtb w/low psi tires. When I switched to 700 road tires and kept getting pinch flats the connection wasn't made right away. I thought I was doing something wrong. Then I read a thread about high psi, tire liners and 'cutflats'. Had an 'aha' moment and decided to get the SMPs.