I fish Colorado River (Lees Ferry Glen Canyon National Park AZ) a 13 mile tailwater fishery for wild RBs and Browns. I got in 60 days a year for the last 2 years and have seen one TH guy all that time. What I find amazing from the one hand guys is that they have no intellectual curiosity in what I am doing. Not sure if they don't notice or don't care?
I have often thought about this as well. I think it is intimidation mostly. The only guys that ask about spey casting are the guys that have a good single hand cast. BTW I to swing the Ferry.