1. I have used, in my career (as far as I can remember):
Sherwood 7000
TPS XLite
Koho 590
Reebok Revoke
Vaughn V3
Vaughn V5
Viper Boa
McKenney 895
Kenesky K2015
The core of the pad honestly feels quite different than any of these. While they are a double internal break, they are stiffer than the Vaughns and McKenneys, but not as stiff as the Reebok, Koho, or Kenesky. The boot is ultra soft, which I think PAW nailed: it's the best feeling boot of any pad I've used.
My strapping is pretty bespoke, using a snug leg channel w/ a professor strap (see #4 below)
All in all, the closest in feel IMO would actually be the Bauer Vapor 2X which I tried on in store, but never owned or used on ice.
2. The inside sliding surface is white weave. The pads are not ultra light ala Bauer ultrasonic/Warrior, but they are not the heaviest. They balance well, so the weight is certainly quite good in terms of performance.
3. I didn't notice any over-rotation during basic execution (except for that one stretched out kick-save in the video, but that's more my fault).
4. Strapping on the back is pretty custom:
Professor strap
Single inner elastic at calf
Single outer elastic for calf wing
leather boot strap
leather strap at knee block
thick shin pillow for additional stability
It also came with an elastic for the knee, but I removed it as I didn't see the need.
Overall result is a pad that has very minimal obstruction at the knee, and hugs the upper calf and shin area.