I do manage the Bus Stop without too much effort, plus you can come at the top of the circuit via the road and do it that way. Also Eau Rouge, and La Source from the paddock entrance. There's also a lift to the bar in the paddock where photography is quite good. I'm getting quite an expert at this stuff now!
The main problem for me is camping so we're in a hotel which isn't quite the same but still I wouldn't miss it.