Good leg spin bowlers are also able to bowl deliveries that behave unexpectedly, including the googly, which turns the opposite way to a normal leg break, and the topspinner, which doesn't deviate significantly. A few exceptional leg spinners (notably Shane Warne) have also mastered the flipper, a delivery that like a topspinner goes straight on landing but travels quickly and barely bounces, often dismissing batsmen leg before wicket or bowled. Another variation in the arsenal of some leg spinners is the slider, a leg break pushed out of the hand somewhat faster, so that it doesn't spin as much, but travels more straight on.

To grip the ball for a leg-spinning delivery, the ball placed into the palm with the seam parallel to the palm. The first two fingers then spread and grip the ball, and the third and fourth fingers close together and rest against the side of the ball. The first bend of the third finger should grasp the seam. The thumb resting against the side is up to the bowler, but should impart no pressure. When the ball is bowled, the third finger will apply most of the spin. The wrist is cocked as it comes down by the hip, and the wrist moves sharply from right to left as the ball is released, adding more spin. The ball is tossed up to provide flight. The batsman will see the hand with the palm facing towards them when the ball is released.
actuall the spin and variation depends upon the pitch if the picth is hard there is nothing in it for a spin boller unless if the match is played under lights if it has some grass and cracks flight should be minimum but spin should be more and if wind is favouring more flight should give u a good swing!!hope this help