Ken Climo talking about spin versus push on his website...
" I want the disc to come out of my hand due to forward momentum, not spin. I want the weight shift to take over. It's easier to do a weight shift putt if you have a locked wrist. I line the disc up with my push foot, which is my left foot, and the pole. I get all three on a line. I'll push from the back of my left foot through my body on the line of the disc and extending to the pole. If you pitched a 5-pound weight from a barbell it wouldn't go left or right – it would go straight. And that's what I try and envision – I have a weight in my hand, not a Frisbee that's going to turn. You push the weight and the weight will go straight. The release is almost like you're extending your hand to make a handshake, not flipping or spinning too much. Obviously the disc has to have some spin but not much. You see a lot of potential aces fall out because of speed and spin. If the drives came in with less speed and spin they'd stick more. That's my goal with the putt, not so much less speed but less spin. When the disc hits the chains you don't want much action."