Here’s a great slope site in Mass, The Mohawk Trail. 800 vertical feet high at least. West facing slope and the wind is always west here.
Here’s a panoramic shot.
The spot is the western most summit of the Mohawk Trail, Heading out of North Adams follow RT.2 East – after a short drive up the mountain you will come to the Deadman’s curve “almost a 360 degree turn, then up another long ascent. At the very top of that first summit is a gift shop, directly across the street on that corner is a small dirt road. Down the dirt road 50 yards park next to the large antenna and radio shack, follow the trail in back of the shack to the launching site. 800 vertical feet below you, always a strong west wind. Tough landing EPP slopers recommended.