Tuna some water holds fish better than other as you know.
Agood spot is a good spot but being in the right place to get the correct drift is helpful also.
In the case of my trip, I was stuck on the wrong side of the river to get the best presentation but the real problem with placement was that there was a bunch of snaggers working below me stirring the fish up so they never really stopped in what is usually a place they do.
They just kept moving.
Had I fished below them I might have done better, but Bill (metalslayer) had
told me the area had filled in during the flood and I decided to fish down river checking it out so was getting preused fish to fish to.