I'm 95% certain our Polecat in the base area at Mt. Ellen has an oscillator on it. I think we also have a Ratnik Snowgiant II or V on an oscillating tower mount. I'm sure other places have them.
There's a lot more to it, though. It's both science and art.
I get that
As former 'bump addict' that still loves bumps, I think it goes without saying that most bump skiers would be 100% satisfied if they could show up to their home mountain and have 1, just 1, great bump run available to them 75% of the time. It's New England. Weather happens. Outside of the Northern Greens, expecting great bumps more than 75% of the time is unreasonable.
I would love to see an area, (Ragged for instance on Showboat ), line a seeded bump run with oscillating snow guns where you flip the switch one night a week when there's been no recent natural snow to freshen them up or fill in deep troughs.
Bump skiers are the minority, but we also have the smallest terrain needs of any 'genre'. I grew up skiing Okemo. I skied Sel's Choice 20-30 times a day and that's it. I was happy as long as the bumps were good on ONE trail.