Sundial, where exactly is the knot? Is it close to where the achilles attaches to the heel or is it higher up, more like where the achilles starts if you were referencing the portion closest to the knee as your starting point? Or someplace in between? Is in more in the muscle above the achilles?
And do you have any numbness/tingling in the lower leg or foot?
And yeah, what Knott said about the wedging.
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2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS