I took one trip (with a guide) that resulted in no fish and I was deterred but not hopeless. I took three more (I think) trips with members from this forum in drift boats where I came home fishless, but that made me want to catch fish even more. Each trip so far after that has resulted in fish. The D is a darn tough river and yes many of the fish may be conditioned to seeing drift boats, but these fish are wild, big, and smart fish (and they get that way for a reason) which for me lends itself to the allure and challenge of catching them. I can be at the river system in less than an hour so I am lucky, but still it's the most challenging river I have ever fished. Maybe in the next few weeks I can get up there again and maybe I'll catch them and maybe I won't. Either way, it's a day on the water in one of the most beautiful river systems (in my opinion) in the east.