yes... I have run it down three times and it was great, but they were all above 800 cfs. I would think that 550 would be the lowest you could run it at with a couple of tight spots.. There is a lot of flat water at the level but it is still fun. Avoid Thumper rock it, I hit it this year with my gf and we both swam.
If we run it sunday it will be in duckies unless it comes up...