Key chatter means you press the key once and it outputs several presses. In my case it didn't happen consistently, so was incredibly annoying. I'd estimate ~3

Key chatter means you press the key once and it outputs several presses. In my case it didn't happen consistently, so was incredibly annoying. I'd estimate ~3 weeks of very regular practice to get up to my previous typing speeds on the TECK or Ergodox. However before that I'd also learned to use the Kinesis Advantage, Freestyle, and even the FingerWorks TouchStream (http://www.ergocanada.com/products/keyboards/fingerworks_lp.html http://www.ergocanada.com/products/keyboards/fingerworks_lp....)