I also own a Dygma Defy and I am a big fan of it. It's certainly not _necessary_ to switch to split/ergo, but I have gotten used to the feel and it is very nice to use. If you get one, give yourself time to learn. It takes a week or 2 to get used to it!
How are you liking the keyboard so far?
Did you have/try other split ergo keyboards besides this one?
I also own a Dygma Defy and I am a big fan of it. It's certainly not _necessary_ to switch to split/ergo, but I have gotten used to the feel and it is very nice to use. If you get one, give yourself time to learn. It takes a week or 2 to get used to it!