Are you usin them for park as you also want them as a powder ski? If not then get somthing smaller. Have a look for the shreditor 102 from last season. I ride those as my everyday ski last year and they were still great in the powder but will be way more fun in the park and all mnt.
For straight park? No way jose. For the occasional lap sure. I have a set of pettitors that I ski maybe half the time and they are just a lot of work to haul around and they are certainly not light by any means. You would be better off on something like sir Francis bacons. That's what I ski if I'm going to do any days where I'm more in the park than not.
That's my opinion atleast. Big floppy pow skis can be fun in the park but it's not something that would be fun to do Day in and day out.