I'll report for my daughter, also. I put Jack Brown greens on her upright and she didn't like anything about them (she never thought they were fast enough, though her nature is fast), but I have to think the 60 tpi made a difference. She's ridden many miles on three sizes of Challenge on two different bikes and loved them. Right now her go-fast has Veloflex, which only come in 25mm, but are essentially Open Paves made in Italy (and 20% cheaper). Also her upright now has Soma Supple Vitesse in 42mm, but hasn't ridden them enough to report.
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