This is new. My GRADE field properly calculates and even displays mGRADE as positive (climbs) and negative values (descents) on screen. And in the FIT file I'm seeing the valid pos/neg GRADE values. My createField is set to FLOAT.
But the GRADE plot in Garmin Connect web doesn't render the negative GRADES.
Wow - ok just for fun I just checked the same activity in Garmin Connect Mobile (iPhone) and it does show the negative grades. So it is just a GC Web bug I guess.
