Hi Fran,
I know what you mean by missing aftertouch.
I played my S-970 for some gigs to lighten the load from my T4.
Aftertouch was a big thing for me missing.
I don't see a lot of players mentioning it .... ???
Now that I have a Genos, I am happy as can be.
Light weight compared to my old T4 and aftertouch :):):)
So much more expressive when you play ...

One of the major things I like about the Genos are the amps and real distortion for guitars. As a guitar player this is a must for me.
The PA4X is a very close one.

How does the BK9 stack up against the 2?
Enjoy and have fun playing.
Eric