here is my follow up report.
I fished Dry Falls on Friday. gorgeous day and probably 14 people on the lake. in a nutshell, I did not do any good. my still water tactics proved no match for the lake. I was not prepared, nor interested (mainly this) in deep chiro fishing. most of the people on the lake were doing this and not a lot of fish were caught. the scenery is spectacular and we called it a day about 2:00. we were saving our energy for the next day.
we fished the lower lake at BTW. the upper lake had a lot of matted material on the surface and we were not sure if the winds would push it out of the way. the lower lake is known for less fish, but on the larger size. I would say there were 11 people fishing - prams, pontoon boats and u-boats. there was plenty of room on the lake. the fishing started kind of slow but picked up as the day went along. the afternoon was stellar. while I tried some chiro fishing for a bit, and half the other boats put in more time than I did, I moved about stripping back various patterns through out the lake - this caught fish from 15-25 inches. some big fish were caught. being a pay-to-play lake, this is what we expected.
as mentioned, the afternoon was stellar. we concentrated on smaller nymphs and caught a lot of nice fish. between my one buddy and I, we landed about 70 fish. I brought another friend who does not fish much and he landed 8 large fish. and he was extremely happy.
it was a long day in warm weather, but we thoroughly enjoyed the day. yes, we paid for this trip, but the size of fish was worth it.
here is one average size fish - I would estimate at 21 inches.