A properly designed split keyboard is aimed at improving the placement of the wrists though. I found a minor but noticeable benefit many years ago switching to

A properly designed split keyboard is aimed at improving the placement of the wrists though. I found a minor but noticeable benefit many years ago switching to the Kinesis Advantage. I've recently switched to the Truly Ergonomic keyboard; I've yet to decide if it's better or worse overall than the Kinesis.