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Multiple controllers to gameport
u_rebelscum:
You can double up on an axis, as long as:
a) the two POTs output the same range in ohms
b) when you calibrate, you don't move both at the same time,
c) the POTs are wired in serial
The easiest way to meet condition a) is make sure they are the are POTs and travel the distance, but you can also have one with 4x the resistance but one fourth the movement.