peter What exactly do you want to do? Scroll left and right while pinching?
Have a look at Twisted Waves pinch zoom and movement behaviour it is rock steady and allows you to move while you hold the two finger pinch movement, the pinch movement reacts only to the zoom and the actual left right move allows you to also move to the zoom point , at the moment if you pinch and move it takes off uncontrolably, making it difficult to pin point the place of interest.