Hello, just browsing around and saw this thread.... there was a video of an electro-epic years ago - i saw it. It apparently was the prototype but the video was taken down and nothing was ever said about it from ICE. Many held out hope at the time that the electro would emerge but as I said nothing happened. I've no idea how it operated, only that the guy was walking the trigger.
jason - with no trap door you're getting a helluva lot of blow back up your feed tube and terrible efficiency. But if it works for you and your happy then I guess no worries