I was having an issue getting it working myself. I ended up checking for a flick motion on InputTouch. Check it out, there’s no reason one couldn’t do the same thing for pinches:
This takes the start location of any given touch and when the finger is released we check its end location against where it started and if its more than the desired threshold I call an Event. In this case, the user has to swipe UP at least 250 pixels to fire a missile from his ship. The only downside I could see would be if you pressed in the middle, went down and over and then back up it would still read as a flick, and if you went down 100 and then up 300 it would still fail, but if one were so inclined you could update the starting location on Moved. Squeeze isn’t worth the juice in my case.