Hey guys!
Sorry, haven't checked GH in a while as I've been busy.
I haven't chosen a new alpha color- that's a misunderstanding. There are still samples being made for both alpha colors, and I'm waiting on those to decide. However, as I've had more and more time with the caps on my HHKB- now when I reexamine the caps and compare them with the pantone swatch of 492C, I'm heavily leaning towards 491.
I apologize for the misunderstanding!