Topic: Yamaha KX88
There is only one velocity curve on the Yamaha KX88 but the range is quite wide:
Velocity = [15, 122; 0, 127]
In terms of the keyboard action, this is by far the best keyboard I've ever played. It was produced in the 1980's, is extremely reliable, and is built like a tank, weighing 64 pounds.
You do have to pound unnaturally on the keys to get a velocity of 122, and I don't play like that, so I sometimes tweak the curve in Pianoteq to get a certain sound. But normally I use the unaltered KX88 velocity curve.