I will certainly give you a tesimonial.
Had a house in WV, in the mountains, and it was quite often windy, 20-50 mph were common. The house was kinda situated on a hill, with a deep valley below. (Cacapon River). Large tree line about 100 feet behind the house, higher than the house.
When the wind would blow, the woodstove would not draw, at all. I'm talking about a smoke filled home. Friends thought the house was on fire when we had the glass doors open, with smoke pouring out of the home. Tried opening windows on the pressure side, etc, all to no avail.
Bought the Vacu-Stak out of pure desperation, and IT WORKED LIKE A CHAMP!
Problem solved. When a gust of wind would come up, the fire turned cherry red.
I don't think you will know whether this thing will work or not, in your situation, until you try it.
Cleaning it in the spring is a drag.