It's not a hard climb or anything, it's just higher. The harder stuff has been. Obviously depends what state he's in but I'd want to get through Silverthorne and Breckenridge and over Hoosier so I could descend and get into the warmer states sooner rather than later.
Speaking of.. there's a heat wave getting started today. A week+ of 90-100f temps likely from the coast to the mid west not quite that big, but Wyoming to Kansas could be rough.
Perhaps Kraig will rest a little longer this time, given that he's at the bottom of the highest pass?