Improving stability

I've been messing around with a gravity rotating platform engine over the last few days. The result seems to work alright, but it can easily be broken; you can see for yourself here.

My question is, does anybody have suggestions for how I could make it more stable? I'm not sure how much of the issue can be improved without doing the movement from scratch. After all, the platform behaviour is hardly meant to work this way.

Still, if anybody would be interested in giving me an opinion on this, you can get the capx here.

You're talking about the detector sprites getting stuck between the the yellow ramps and green walls, right?

Give the yellow ramps more thickness.

So instead of this:

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Do this:

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Ex:http://dl.dropbox.com/u/5426011/fixed/PixelMonkey.capx

It helps in some parts, thanks. Still though, it's got too many ways to glitch one of the sensors into a wall, mostly when jumping off an angled ramp. I've scrapped the capx I was using before, since it was too messy and had too many parts that could cause problems. I've tried an approach that's a lot simpler, and it seems far more stable.