Here's a ride jobob can use for comparisons and demonstrates the erratic nature of MB:
Crater Lake Century
SportTracks / 6,222 / 6,230 (using data smoothing)
GTC / 6,218 / 6,225
MB with both autocorrection and MB gravity / 8,053 / 8,053
MB with auto correction / 6,490 / 6,497
MB with all elevation corrections disabled / 6,567 / 6,573 (check mark cleared in auto correction and grayed out in MB gravity so that the page shows "corrections disabled)
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.