The shafts are fairly well compressed even on +10mm bones at the horizontal for the tripode shafts. The overall deflection from the horizontal is not massive though.
Are these tripode or lorobo shafts?
If lorobo you could machine 5mm of each joint end face with no decernable problems.
The other alternative that has been used before with the short bones is to move or modify the inner pivots to move them +10mm outwards
TT
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