I fished Grafham today... just got home. Yeah England Youth were there but still managed to get a boat. I think they've got another training day tomorrow before the comp (so I was told). Shouldnt be much of a problem getting a boat for tommorow (but best to check).
If you get one dont anchor for obvious reasons mainly because the young guys are drifting everywhere. I spent all day drifting from savages down to the jetty pretty much on a DI7

. The fish are quite hard to find but I got mine in deep water somewhere near the middle. I dropped on them and within an hour I had about four fish. Mine were found about 7 feet down using an orange blob and two diawl bachs all about five to six feet apart...
Pulling pretty quick I managed to pick a few more before I left at 7.30ish. I think once you find them there are not too difficult to catch (maybe I was lucky today).
I was speaking to a guy who was drifting from the seat to the bowl of the dam who didnt get a knock. Most boats were drifting around savages etc etc none (apart from this guy) were over near the G bhoy area.
I hope this help.
Best wishes