At the first turnpoint, a 5 km cylinder around Signal Peak.
Kraig's Flytec 6030 is set to record a track point every ten second. The blue
line is the Flymaster Tracker:

Daniel Velez, the scorekeeper, writes:

On last day (Day 7) of the 2019 Santa Cruz Flats Race, in Open
Class, we had an issue with Kraig Coomber's Flymaster track. His tracker went
out a little more than 1 minute just on the first turnpoint. So his backup was
used to validate his track.

But, this turned out to be also bad, as his backup tracker showed him crossing
the goal second instead of first, by 3 seconds. So we wanted to score goal with
Flymaster trackers for both Tyler and Kraig as the time interval between data
points was much smaller than 10 seconds giving us a more precise time at goal
and the goal times then agreed with what the pilot's felt was the case. But we
wanted to validate the turnpoint.

So what I ended up doing was "manually" inserting the missing minute into the
Flymaster IGC file, and scored the task with that track.

You now have original IGC filefrom the tracker, the original IGC file from the
backup flight instrument, and the "mixed" IGC file from both that was used for
scoring.  In the "mixed" IGC file you can easy see the "inserted" data, if you
scroll down the file in a text editor, as the lines are "longer" so they are
noticeable.

I also compare the "altitude" values in SeeYou for the Flymaster
track log and the one from his 6030. The Flymaster displays an altitude up to
500' higher than the 6030:

I also compared the "altitude" values for my flight for the Flymaster Tracker,
the Flytec 6030, and the Volirium P1:

The altitude values for the 6030 and the P1 are identical. The Flymaster tracker
is quite a bit higher.

I also compared the "GPS altitude" values for all three instruments and they are
identical: