I disagree. Even if you watch Wake, very rarely is it absoloutely zero spin.
You need it goind above 55 MPH at least. Take movement over lack of spin. I personally like about 1/8 of a rotation. I mean I'm still working on consistancy but, that is when I get the most movement. Just avoid direct side spin and back spin and you'll be on your way.
If you can get a slight spiral rotation you may be able to even get the ball to corkscrew. So try to get as little spin as you can but ask your catcher or teammates in BP if it's moving. Movement is really what you want.