I don’t have PotP Jazz in hand. (Sitting in my BBTS Pile of Loot.) The white hands were an annoyance but I thought MAYBE Siege Hound’s hands would fit and I could keep an eye out for one at a reduced price. (Honestly, a spare wouldn’t cost THAT MUCH more than Shapeways with shipping or some upgrade kits.) Anybody feeling adventurous enough to test?
In short. No. Hounds hands are too large. Jazz’s hands do pop out easily though so they should be simple to paint.
I popped mine out and painted them. It was pretty straightforward and made a difference. I also swapped the wheels with a extra CW Mirage to get the painted wheels. Seriously, how much could it possibly add to paint wheels? Lol (I know, beating a dead horse).