I also fish the Gun but I'm not an expert to the historic maintenance of flow as I've only fished it for the past 7 years.
Flow has been higher so far this year on average than the last 7 years I fished but so has other streams.
The fish are there, but not always in the traditional holding spots. Got to go find them.
I haven't fished it as much this year as I normally have done because of the high flows. I've found a lot of 2011 and 2012 fish from the spawn, good for the future. Last week while fishing it, I saw numerous fry in the back eddies.
The larger fish are there but harder to get their attention. A couple days during the sulfur hatch was a good indicator of bigger fish being present.
There are a lot of blowdowns in the river at areas I fish, plenty for fish to "hide". Also in the areas I fish, I've seen some bank deterioration.
As for anglers who have had trouble wading this year and have previously fish the Gun, observing the flow should have indicated to you that you should not be wading in certain areas. It's called common sense.
Dale