I have the Shimano SPD pedals on my R500T but I grew up with traditional pedals and toe clips. I like the SPD just fine so far. I thought about finding a set of old school pedals and toe clips but my LBS let me try the SPD and I think I'll stick with them. I have never tried a Frog pedal thoough.
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13