I cast upstream to the top of a hole, and retrieve with a jigging motion. Slow retrieveal, occasionally pulling the spinner with the rod tip, also slowly, while not changing speed of retrieval with the reel. It pops the spinner a bit higher in the water, then allows it to settle a bit on the slack line. By "slow retrieval" I mean retirievig no faster than needed to keep the blade spinning. The slow jigging supplieas a bit more action.
I have better luck pulling the spinner towards me quickly for two or three feet the moment it lands, then slowing down the retieve. In my head, that makes it look like a bait fish getting out of the way, but I have no idea what the fish think about it. I usually don't wait for the lure to come perpendicular to me, but only as far as about 15-degrees above perpendicular, although it's often effective to let it drift past to about 30-degrees beyond perpendicular if it's a large-ish pool.
I have a lot of luck with all black spinners, black body and black blade (Vibrax and Mepps) and with white with a silver blade (Panther-Martin). Color matched to carity of the water is rumored to make a difference, but I haven't noticed a significant difference, yet.
Good luck over there.