I bowl a three fingered delivery which i have posted in Lone Spinner post.My problem is that I seem to have no control over angling the ball.I can sometimes do it very beautifully but very often it just slides way down the legside if i try to angle it in the right hander or it goes short and wide if i try to angle it away. I can use the crease to rectify this but i wanted to do it with a straight approach near the stumps to make it more effective.