In one of his books John Gierach says that that is exactly what AK Best does.

Another point on spinner wings; where they are tied is, or can be, important. I usually carry 3 variations. One with the wings tied conventionally across the top of the body. One with the wings at the side of the body. And one with the wings at 90 degrees, ie. one upright one spent. Which I fish is dependant on how far up stream the spinner fall is happening. The first I fish if the fall is Further away, a little closer the the second. The third closer still. I have rarely encountered fish rising directly under a spinner fall on the rivers I fish. The further from the fall I am the more awash the spinners become as they drift down. On rare occasions I have had to fish the spinner totally submerged. I've toyed with a soft hackle spinner for these times, but they have been so infrequently that I have encountered this, I haven't bothered... Yet.

Cheers,
A.