Bear in mind, as has been posted, they look like similar guitars but aren't: 1) The Casino is completely hollowbodied, the Dot has a center block and thus is semi-hollowbodied. This changes the sound of the guitar in a lot of ways, and feedback is only one of the ways. 2) The Casino has P90 single coil pickups, the Dot has humbuckers. Of course you can changes these guitars in any direction from there, but still... the Dot would likely be more "creamy" and have a more pronounced mid-range and less highs, while the Casino will be more "brittle" and have more of a high range jangle sound, but the P90s will also tend to bark a bit when you lean into them at loud volumes. I kind of don't like that... most do. So, I'd probably get my hands on both of them and find out for yourself. Me, it's easy... I don't like humbuckers, so I wouldn't want a Dot much. And you should take my advice with a grain of salt, I've never owned a Dot or an ES-335 or anything similar. I did own a Casino, and will own an ES-330.