Husker, I've fished Big Creek 3 times and have caught a total of 6 fish there and those came on the last 2 trips. Your analysis regarding the difficulty is accurate. It's a tough stream to get access to and to fish ...But you may want to give it another chance and go up the trail and fish the Midnight hole and a couple of other pools there about 1 3/4 miles toward Lower Walnut Bottoms. The water there is accessible and there are fish there for sure; to fish this pool , you have to be able to wade more than i am able to. But these pools are where I have caught the fish on Big Creek.
P.S. BE sure and go early the later in the year you go due to swimmers..