Nice NMs guys! Is that the new 2015 97 Steve or last years?

my NM should read 31.5  , checking the number if i average the speeds over a 114 second time ( the time it would take to travel  1 nm at 31.5 knots ) i get 31.5 knots , when i check the track its skipped alot of the counts that should be every second (theres only actually 90 when there should be 114 )  but the numbers look consistant still also the satelite count drops to 4 .i think ka72 just scraps the whole run . Has any one else had this happen from looking at it the problem happens when going over the messy water that would have altitute change .

send me a streadsheet of the numbers steve