i'm with 220-230 lbs and 6"5 able to do 360 on my 174 (!!!) rockered board. (i fail 3 out of 5 jumps, but anyways)
I can easily do 180, and i do not catching edge anywhere.
"struggles to 'bite' on ice (probably due to the RC)"
Detune your board, if you think so. But i think it is all about the skills.
Usually people buy softer binders for park, and stiffer for freeride (powder goes this category).
My opinion: Force for powder, contact pro for park.