Tropicallvr

There was a guy who said that his E.ventricosum rotted down in the winter, so he split it up and it pupped.
If you are able to check out some of the old posts on the UKoasis. There was a guy there that made pups regularly(with mixed results), but basically you want to get it a big as possible, then hollow out the corm until it is close(for easy pup division) to the roots. It(the corm) will fill up with water, and you'll have to dump it or it will rot. Or leave it on it's side if in pot.
Then it will get crusty, and callused, and will grow pups.
Good luck. I'd like to see some pics of the process, but I'll do it too if I have the time this summer.