Replying to On3p jeronimo/filthy rich sizing!

Title says it! Looking to get either a pair of on3p jeronimos or filthy riches for the season! I ride east coast and ill be working/home mountaining at sugarloaf for the year! I ride volkl walls now. 177s. Was wondering what y'all think I should get for a length on the on3p most everything thing Ive read says go one size up which is 181s but wondering if I should just stick with the 177s and be able to throw em around all day alot easier... I'm 5'10" about 170 and a decent skier looking to become a boss skier this season haha