Replying to What size THalls for 6 foot 150 pound skier?

Me: Type 3+ skier. Looking to get into park. Just sold a pair of 185 JJs that were holding me back for skiing the mountain (Little too short for high speeds on variable snow). Really enjoy skiing my 193 Automatics with Guardians instead, basically everywhere, whether pow, pillow lines, or groomers. I ski fast, hit large cliffs (ie. 30 foot plus) and my go to trick is a butter 3. But obviously, I don't want to ski my Automatics in the park.

I realize I'm not the heaviest guy out there, and I should know enough about skis at this point to answer any questions myself, but my area of interest was always more leaning towards pow skis and big mountain lines. So, would I be ok skiing THalls at 176 or for butters and general stability, be better with the 181s? Thanks!