[myoung84]

There's also two different versions of the arms. I went through this when one of mine broke and the sent me an early version and it doesn't go up as much and of course isn't compatable with the new revision. Look at the rubber stoppers, I think the latest ones will have one black and one grey stopper. Might have to scrape some crap off since the grey might look black, that's how I ended up with the wrong one. Mine suck all the way to the pinch weod with no gap at all.