Fully loaded rig very curvy & hilly tow test with stop-and-go traffic as well as up to 65 mph sections -
Success! The 3 wedges on the fronts & 2 wedges on the rears is the perfect combo. for our set-up. 
Drove from Santa Rosa, CA to Bodega Dunes cg in Bodega Bay, CA with absolutely no issues. No sway (although we didn't have any to begin with), sponginess, or porpoising. The TV & TT travel as a single unit in braking, stopping, accelerating, cruising, over bumps & pot holes, etc...
At Bodega Dunes cg (which has a dump station) I filled up the 25 gallon fresh water tank (I had already filled up the 6 gallon WH at home) and then drove the final way along Hwy. 1 to our destination - Wright's Beach cg (between Bodega Bay, CA & Jenner, CA). With the extra 200+ lbs. of water near the center of the TT there wasn't much change. Still a nice solid towing experience.
In our case this product gets a 5 out of 5. I highly recommend it.
Here are a few pictures.
Showing the fully-loaded TT sitting level with the StableLoads engaged. Filling the fresh water tank. And a few miscellaneous pictures of our site & the Pacific ocean. *My wife had to work this week so she drove out in her Beetle to get to work & back.
