I think I'm liking northwest KS better than Amarillo, possibly on up into Nebraska. Much of the TX panhandle is still socked in under clouds, and while they're clearing, the job is already done farther north. I also notice that the higher dewpoints are east of the panhandle and advecting northwest up into Kansas, where the surface winds are nicely backed and where, as John Hudson pointed out, there's good UA diffluence.
Frankly, I suspect this will be a widespread event and those who chase in Texas won't be disappointed. But for the reasons stated, I think I'm going to begin the 300 mile trek to Goodland and make adjustments as necessary with further updates.