Steve, that is exactly the reason I got rid of the ZX - it's a fun bike for short distances, but anything more than 100 miles would just become miserable - if your hands, wrists, and butt is sore once you get to the destination, you can't really enjoy yourself, and I found I just didn't want to ride that far because of it.
I liked the cruiser, but it wasn't very good on the curves. Having two bikes wasn't working anyway - the ZX was sitting nearly all of the time because the cruiser was more comfortable. With a few tweaks, this should cover both requirements. I hope.