If that is the case, it's the same deal as the off-set piston pin. It works, but more piston-slap. New twist on an old practice?
Not quite Adam, at maximum pressure just at/after TDC(on the power stroke), the forces on the piston crown would be balanced either side of the wrist pin centerline reducing the amount of piston rock and major thrust losses associated with permanently offset pin positioning, especially with shorter skirted light-weight pistons. the process would allow a continuing reduction in thrust losses by slowing the rod angle rate of change as the crank pin rotates toward 90 degrees although I would guess that the benefits would be hard to measure in the engine motoring test done to determine frictional losses.This is the way I see it anyway.
