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That's what I thought until I popped into the LBS and had a look/test ride
Ergon claim it fixes this issue:
by supporting your hand but also altering the angle of your wrist
What I found was it fucked with the ergonomics of the brakes (angle of lever and hand don't match up) and I could relieve the issue in the first picture by just repositioning the bar (raising and shorter stem). IME the regular ergons work well enough if you just want palm support.
Interesting. I'm no physio but don't they just give more support diagonally across the palm in that setup?