I don't know if you will get carbon fiber side guards. They seemed well-designed on the ZR that I posted pics of in January, but they disappeared from the order form when I ordered the ergo seat ZR I posted pics of last month. When I was at the International Seating Symposium in March, I stopped by TiLite's exhibit and was told they were temporarily taken out of production because of some problems in the field. As of their most-recent order form, they were still omitted. If they are still unavailable, the aluminum side guards are still excellent.

Congratulations! There are very few chairs better than the ZRa. It will be a huge difference compared to your Quickie2.