Not me personally, but...
My personal top end, high water Gore run was at 2800cfs. Everything used to go at those levels (a "creek sneak" opened up on the far left at Pyrite). I haven't been in there higher, but I think I can guestimate what you might find.
I know than Chan Zwanzig, Charlie Ebel, Billy Mattison and others paddled it in the 5000 to 6000 cfs range sometime between '95 and '98. As well as, Jamie Simon and the Wavesport crew ran it at some heinously high level around then as well. I heard tales of massive wave trains in the first rapid ("Stinkin' Beaver), the pool below Fisherman's Nightmare/Applesauce, and even some upstream wavetrains in the eddy on river left above Tunnel.
Above 3000 cfs, most people opt to walk Gore Rapid down to below Pyrite. It becomes one long monster of a rapid ending in a river wide hole at Pyrite. Jamie Simon got offline /upside down in Gore and ended up running through the hole in Pyrite. After a severe thrashing and losing her helmet, she ended up getting worked in the river left eddy/lateral coming off of the cliff wall below Pyrite and went for a swim. I imagine it was fairly unpleasant.
I've heard a second hand report that the left line in Gore was not good to go at 2000 cfs this season, due to the woodpile on the left of the "meat line" entrance rock. That woodpile has altered the flow there, making the boof on the left a no-go at higher levels. The old 2000 cfs plus line was to boof over the top of that rock and then move right for Scissors and then back to the left for the "sneak" at Pyrite. Gilligan's, Decision, and the rock behind Decision make a nasty three hole combo in the middle. Right of the sneak makes a nasty sieve/slot above 2500.
I imagine that everything other than Gore through Pyrite is runnable. Watch out for the large holes in the rapid between Tunnel and Toilet Bowl (Raceline Rapid). Kirschbaum's becomes massive in the middle. Left is probably a good choice.
If you go, have fun. Take photos/video.