I climbed one less meter than you and skied a few hundred meters shorter. You should consider joining the North TX XC Ski team; we know how to optimize and could give you tips. There is a try out process though.
How many face plants did you have? Maybe my garmin went from wrist height to ground level one more time than yours..
One face plant + one back plant = 2 meters over estimate of climb. You must have had 3 plants. That's within the benchmark that the N TX XC Ski time will allow so you are still good to apply.