SS Recoil (3 stage) 142 or reflex 141 (progressive mild
3 stage)... there is also the response, but it seems like you go more for the threestage or hybrid rockers from the choices you listed?
as nick said
...once you are use to it, it pops like nothing else.... and the landings are super soft.
I am at about the same riding level as yourself and slingshot/ flexboard(s) has helped me re-live and re-love wakeboarding more than before... but with that said, i have never ridden the murray or watson.