A new version of
disis.aka.wiiremote Max external is now available from the
usual place offering better Wii Fit balance board jitter calibration. By default the new external requires a minimum of 2kg (as opposed to 1kg used by v.1.03) to measure the center of balance. While testing the external with a number of Wii Fit boards, we found this to be the minimum threshold capable of alleviating the jitter consistently. The update also introduces the "jitteroffset" message, allowing for the adjustment of the said minimum weight threshold. Additional info can be found in the Max help file.
Cheers!