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Old 07-19-2018, 06:49 AM   #13
cityboy
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Join Date: Jan 2008
Posts: 574
One final update. It's been a month since I've stopped taking GF-9. Very noticeable difference in performance. My biking speed dropped conservatively 2 mph and although I don't feel achy I did notice no life in my legs. Sort of wiped out after a short flat ride. Too bad about those side-effects because it's now my opinion that it really did work. As in anything buyer beware especially if you're taking medication.
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