I have just fitted an IOSD mini to my P2 and noticed that after I turn on and let it initialise and set homepoint, the IOSD mini height indication flickers between 1/2 or 2/3 metres even though it is (obviously) on the ground. Now I can tell from the units that resolution of this metric is not that accurate, but I would have probably expected it to indictate 0m or 0/1 m. Is this normal, is there a way to reset this the same way one would do so with a nomal aeroplane barometric altimeter ? Does this error indicate that the height at which the quad thinks it is back on the ground is 6+feet out ? or does the Naza compute that from elsewhere? Thanks.