I came from using two Microsoft Natural keyboards at once, as my "split" keyboard. I eventually upgraded to a Kinesis FreeStyle 2. I've tried some ortholinear keyboards but hated hated hated every minute of it. I'm back on the FreeStyle 2 at work and a newer FreeStyle Edge at home.
Look at the cloud nine split mechanical ergo keyboard. Feels just like a microsoft ergo snd I was able to type full speed immediately. I had to shelve my ergodox ez - just too foreign with moved keys.
