I've caught a zillion fish in the Chena this spring, and I'd say 75% have been within an two inches of being the same size... 8-12 inches nearly every time. So I'm curious as to how big they get in the river. According to the handy species information page from ADFG (http://www.adfg.alaska.gov/index.cfm...cgrayling.main), the larger ones should be finding their way toward the upper end by now, and I haven't been there to find out if the size is any different. I can only report that the middle river is quite full of the little ones.
Since this is theoretically a give-and-take informational swap.... I've been fishing straight upstream with wet coachmen, emergers, and gnats - between the fast water and the bank. (Here is some information buried deep within an obscure post: I saw a chinook in the river Monday). Long leader and lots of casts... once the fly has drifted five or six feet, I'm picking it up for the next cast. Very few backcasts also - just pick it up and set it back down easy. Lots of grayling with sore jaws.