Touch Weight Too Heavy on MX100

[A440A@AOL.COM]

<<          C2      53      34
>         C3      57      36
>         C4      60      36
>         C5      64      38
>         C6      62      38
>         C7      62      39
>         B7      75      41      (C8 felt like it had a mechanical problem)

Greetings, 
  could these numbers be in reverse order or something?  having 75 grams of 
down weight on B7 is totally out of logic.  If these are the right numbers,  
I would suspect that there is a very tight keybushing in the works here.  
 
Regards, 
Ed Foote