Free floating for fishing slow or transition water, down and across for tailouts or riffles, and last of all dead floating for slow deeper pools. Before I describe these three methods, we need to establish several important facts. Salmon and Steelhead will attack lures at almost any speed. I have found that the slower the blade is turning the more hookups I have. That is not to say you won't be successful with a faster presentation.
Light is another important contributor to success.
I've had a lot of hookups on bright cloudy days or just when the sun hits the water. In order to have a blade flash you must have some degree of light penetration. The last factor might be the most important to consider before choosing your lure. There are many variations of spinner's on the market today. The most popular in the Fraser Valley is the Gibbs Colorado blade.