Re: Best Spin Ever Seen
Swing happens when the ball moves through the air. It is influenced by arm action, speed, climate (humidity, moisture, temperature of air) and shape/features of ball.
Seaming happens after the ball hits the pitch surface on its seam and bounces away or into the batsman. It is influenced by condition of ball (rough side vs. shiny side), delivery wrist position of bowler, grip of bowler on the ball before delivery, speed of delivery.
Adding: Forgot to mention that the pitch condition dry vs. grassy or wet will be very very important as well.
If pitch is dry light seam movement will occur however will vanish in very few overs and then later on contribute to swing due to making the ball age faster, read that as roughing up the ball faster. On a grassy wicket the seam will cause the ball to skid away the slightest bit exaggerating the seam affect. I hope I have confused you with all this information.