On MUPs I ride with just enough light (pointed down) to see the trail ahead of me (either two Fenix LD20s or a single Niterider Mininewt 350.) Helmet light gets switched off on MUPs.
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A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831