I like to cast it upstream and reel it in slow - just enough to keep the spinners moving. They like to be up against the rocks to hide. And probably more near the bottom. That time of year it might be warmer and they may like the deeper pools - but I don’t know. Even then though - fish on the edges of the current. The fish are in the calm water against a rock, waiting for the current to bring them a meal.
Again - talk to the local tackle shop.
Thanks.