Replying to Waist size on the East Coast

Trying my best to be brief here. I'm a lifelong snowboarder who has decided to go back to skis after 20 years (I'm 35, my back is killing me!). I mainly ride in VT, so I'm looking for an all-mountain ski, but I very much determine my ski trips by being a hound about the weather and trying to score the powder days. I've read tons of reviews and watched all the videos of waist size and ski length, but after all that I'm left wondering, does it really matter?

I'm a pretty aggressive snowboarder and I'm confident after a couple days back on skis I'll find myself in that category. I know I want rocker on both ends so I can screw around in the park and butter all over the mountain, but I also know I'm gonna be chasing the powder days whenever possible.

Am I really gonna hinder myself by getting something like a 105-ish waist? I can't help but wonder if it's a detail that advanced skiers like to talk about because they are good enough to notice things like that, but for the general population of the "intermediate" world is there really a huge difference between a 95 and a 108? Will I hate 95s when there's a lot of powder? Will I be cursing at 108s when I'm in moguls?

The internet tends to be very sarcastic, so I'll just reassure everyone that I'm genuinely asking. I wanna make the right choice and have a solid pair of skis that I don't have to think about for a good half of the next decade.