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post #3 of (permalink) Old 10-31-2013, 12:33 PM
Simon Tibbett
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Join Date: Oct 2013
Location: Georgia
Posts: 32
I also swear by this app. It's dead on accurate when I have used it at an SCCA road race, same times the transponder shows in T&S.

I use my iPhone with a roll bar mounted mount and Optrix case, cheaper than a GoPro and it provides on screen data. Worth every penny!
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