+1 on the no-wax. I am no purist about that, and as Jolt noted, here in NE, the weather/conditions can change in a millisecond. And, +1 on the metal edged skis. So much easier to climb with.
When I was out west in February, the trip leader suggested we rent classic skis that were more performance oriented than my Fischer Spyders that are good both in the tracks (which I prefer for the flats) or a little bit in more rugged terrain. The skis were skinnier and did glide faster, but for the terrain in New England, what I have is perfect. I wouldn't mind getting a pair of true back country skis to do more skiing in conservation land that isn't groomed.
2015 Trek Silque SSL
Specialized Oura
2011 Guru Praemio
Specialized Oura
2017 Specialized Ariel Sport