For 75/25 park/all-mtn what should i mount these at? I emailed Armada and they told me -2.5 and that Hornbeck's are close to dead center. I was thinking -2 but what does NS think. Mostly going to be used for rails and jibs.
Do NOT go dead center.
It's not a symmetrical ski, that makes no sense. Go 1.5 back. You'll be able to ski all mountain more effectively and it will be so close to center, you won't even notice. The entire Armada team rides 2.5 to 1.5 back, including Tanner.
You'll be fighting the sidecut of the ski at center mount.