I've just done a very simple modification to GoT which stops the ball falling out of the Iron Throne.
The modification is done by cutting a standard post rubber in half, slitting it down the side and then fitting it over the ramp.
The rubber slows the ball down just enough so that it stops in the throne instead of jumping out.
Very easy to do the mod - s ee picture attached.

This idea came from a pinball friend in London called Stan Simpson - great guy!

Jim