While the search continues, and at the risk of opening one of those "no real answer" discussions, how important/beneficial is it to be able to run higher pressures? I've seen road bikes go from 19mm sew-ups at 150 PSI to 23-25mm or wider and 90 PSI. My brain won't let me run road tires lower than about that, but on the CT, I've run 75 F&R, on tires spec'd at up to 80 or 85. A lot of the 16s and 20s I've found (and not kid tires) max out at 60. What do I lose if I'm running that soft, or looking in the other direction, what do I gain at 75?