I'm a proud owner of a brand new FCC3 i really like the feel of it but there is less play then i expected (or i tighten the mounting screws too much) i experienced a very small drifting from the center at first install but after a second more accurate HW centering it disappeared completely, after a while i discovered that it was worsened by the c clamp that i use to fix the thing to the desk, I'm working on a support that will distribute loads more evenly but even with the c clamp only a couple of points of drift are there and they can be rid of by a 3% dead zone settings.
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