Hi Andy,
Where did you fish with them? I used to always see them come to Fishs Eddy (where the USGS gage is) in the early evening. Me and my buddy would fish elsewhere during the day, probably Cairns on the BK or somewhere on the Willowemoc. Then around 5:30 we would head over to FE and walk down that path right to the river. We would exchange pleasantries and they would head off the tail sso they could cross. I often thought they wanted to fish where we were standing waiting for some rises. We always arrived before they did. The sun started to do down behind the mountain and larger browns used to sneak up from the riffle below and hang in mere inches of water. I can still see the boils now in my mind. Big washtub sized boils in 6" of slick tail-out. I'd be all shaky and excited and make my way down to maybe 20' above and to one side and tie on one of Flick's Grey Fox variants and let it drop a foot above a rise. We were often rewarded with solid wild browns 20" - 22"