I have both.
Domains are really heavy compared to punx.
My punx had full rocker after 10 days and broke my ski after 15 days. But those were the most fun ski I ever used. Can't comment on the edges since i barely do rails. Since you're almost half the weight as I am I think the ski will hold up better.
Punx has way faster base and is overall a much more fun ski. More even flex. Domains are stiff underfoot till the very last part while punx has a more progressive flex. Overall flex is about the same; soft.