Thanks so much for the detailed reply.

I'll be checking out the Ferris Sweep for sure. I already looked at the Corne and I'm leaning against it b/c of the extra columns. I think I'd prefer something that doesn't have me stretching my little finger out, or re-locating my entire hand... the Atreus layout looks like it would keep those movements to a minimum...

Good to know your thoughts about it not being fully split. I'm daily driving the bog standard Microsoft Ergonomic keyboard right now, so the unibody doesn't bother me. From what I can tell the split angles are similar between the Atreus and MS. So I think that will be OK for me.

I hope you can find a full split that ticks your other boxes! I've found a few in the past couple days, probably the most compelling to me is the bgkeeb... if it had a few more keys and was hot-swappable I might go for it. But I don't have time to tinker much anymore, and I don't know what use I'd have for the rotary encoders.

Thanks again.