Ski Maintenance.
Ken "Bump" Berman

Keeping your ski or board properly tuned and waxed helps you turn easier and maintain control. This makes balancing easier.

An exception to the rule applies to rail and box riders. A rounded out edge can be less grabby.

My suggestion: have separate boards for rails and boxes since you still need wax and edges for jumping and halfpipe.

Carry a diamond stone to remove burrs and touch up edges.