The longer ejector may prevent loaded rounds from being ejected. (I know, why would anyone want to eject a loaded round)
The length and angle of the ejector can be changed in an attempt to get the brass to land where you weant it.
Try to not have a really sharp pointed corner on it when you're done, just on the off chance that a round comes back a 'lil bit crooked and the ejector fires it off. (usually only an issue with a 40)

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Lynnie, Professional Pest