I played organ bass pedals for years when working with an organ. The secret to the leg pain is setting in the right position. Set so your foot falls naturally straight down over the g pedal. Then just rotate the leg side to side.

As for now I agree with DonM. I play with the auto bass so I can do other things with my hands.
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PSR 740,PSR 3000, Mirage, tx7, mp32, Pro Tools 10,11 SONAR, Reaper, BIAB 2020 and a pile of Computer Music mags w/disks
College student was working on Doctoral, Education Now just doing courses to do courses