Im going 19th & 20th September. 8) maybe the Ring Sunday prior.
Havent driven it before, but a very quick track, limited run off in places, not sure I would try Eau Rouge flat, they have changed the bus stop which is a shame IMHO. It is a car breaker, take some spare pads, 2 days open pit, ensure plenty of life on tyres.
Weather can be bizarre, rain on 1 side dry on the rest.
Oh and don't drink too much night prior