Kempis .. see if YOU can find their redemption tables!? Being Mexico based I'd guess they'd keep award levels similar to US airlines, so 25K for an internal USA/Canada/Alaska flight would not suprise me .. probably on UA or AC metal being *.
So an east coast to Alaska freebie for your 1 transatlantic sounds tempting I suppose?
Depends on your status with SK of course - if they give you a high tier bonus this offer is no big deal at all. The Thai one was the best use of it I could think of quickly as I use Thai quite bit and UA is very "stingy" with that 50%. LH used to offer only 50% in Europe but Rudi I recall said that had changed but was not in all guides yet.