Replying to Gotama vs. Helix? Other suggestions?

So I'm looking for a pow ski to put in my quiver. Live in the east, just want some skis for the pow days. I'll be going out west twice next year, too. I'm 5'6" 140, still growing. I ski 170's for park, so looking at the 176 Gotama and 176 Helix. I figured a couple extra inches will be fine. I'm open to suggestions as I'm sure I missed some contenders. Want something that will do ok on the groomers, too. I have Chronics and Max Peters Pros so I was thinking maybe a little more pow specific? Help me out NS.