My boat is a 16' self-bailer. I've had a good year doing Cataract and the Grand, with a run down Westwater yesterday for good measure. The level in the photos is about 8K. We took a 10' maravia bucket boat down Cat at 14K a few years back, and it stayed upright.
The current is basically gone at Gypsum, and totally gone at Dark Canyon. I wouldn't even consider going down there without a motor anymore. The Hite boat ramp is usable again, but the lake gets pretty choppy in the wind so I still prefer taking out at the Dirty Devil as long as it isn't a shit show from other groups taking out.