I have an EC-500 and i break strings weekly, i think it might be the saddles or something... Any ideas?
If the strings break at the saddles then yes it is the saddles. If the strings break at the nut then it's the nut. To fix this just file down the slot where the string goes, of course I'm no expert so I wouldn't even know how to do that. If the strings break at places other than the nut or bridge then you need to stop hitting the strings hard or step up to some thicker strings.
Same string at the same spot repetitively?