Thanks for that option to consider. Interesting how this plays out if firmware may later add support for USH-1 or if that is a hardware barrier.
I also purchased (got a pretty good deal) on eight SanDisk 8GB Extreme SDHC CLASS 10 (30MB/s), yes eight of them. I plan primarily plan on using the CF for raw and dropping a L jpeg on the SD, mainly as a poor mans backup. I figured those would be plenty fast enough to record the jpegs and video too for that matter. Really, I suppose if all I ever used the SD slot for was jpeg backup, those SanDisk Extreme cards would be plenty fast enough.
The idea of buying that USH card was having very fast write speed to back up my raw from time to time when continuous shooting is likely.
Thanks again Bob and Scrappy