I am not in a position to be offering advice, but I can mention briefly my experience as a new guy on the sticks for (5) floats late August thru mid-September. The floats were different segments of the Ringer to Mahre's stretch. High water (3900 cfs) in August, low (1500 cfs) in September. I don't think there is anything particularly challenging in this stretch.
What I confirmed from others comments prior to my first time on the sticks, was to maintain your attention(concentration) on the river at all times, and think about dipping only half an oar blade in the river when rowing. At first, this was much more difficult to do consistantly in skinny water than I thought it might be. How to manuever to avoid trouble had already been drummed into me, I assume you have been coached as well. I was fishing in a Water Master.
I was told at Red's that at 3900 cfs, you move at an average of 4 mph, while at 1500 cfs (somewhat similar to current conditions) you will only move at about 1 1/2 mph.
Regarding sweepers, no dangerous sweepers that I experienced. Colored vinyl from the rubber hatches stuck on some of the slightly overhanging brush and trees though.
Hope this helps a little until others offer some more experienced advice. Be safe and wear PFDs.