Been piecing together the tomtom screenshots on 5/21-23 on top of the tracker points (coming into and out of flagstaff). It seems like one of the watches is in london time for this stretch. You have to subtract 5 to get ET (tracker time).
But overall noting too interesting, just the huge gaps in tomtom data. One segment will end, then 10 mile gap, then 1.5mile segment, then 5 mile gap, etc. It's just weird. Either they didn't upload all of the data, or they are just idiots and recorded only random short segments and will have to fabricate the rest from scratch.