Replying to Need help sizing skis +K for help

Hey guys, heres another sizing thread.

I'm 6ft and 143lbs.

For next season I have

176 Chronics
178 Invaders

but I might be selling one of these so I thought id go back to lib techs and was wondering, for my height and weight would a 173 ski be too small. id use it for more jumps than rails but the jumps are all under like 40ft or so prolly smaller i dont know how to measure em, but the skis are also rockered. i dont know if its the same for skiing as boarding, but snowboards on rockers u can size down. i was told it was the opposite for skis which was to size up on rockers but im not riding in any pow, its strictly park about 80% jumps 20% rails boxes w.e

So i was wondering if the 173 would be fine, of course the 181 would be better but theres a deal on the 173 so yeah. thanks