Thanks.

I modified my /etc/init.d/rcS script to unload cx3110x.ko then load the modified cx3110x.ko module. As I said, not much change. However, I did not run chroot /mnt/initfs /usr/bin/wlan-cal. I downloaded the new modules, added the new step for wlan-cal and retested. Result: improved! The 15mhz module performed with an upper limit of 400 kB/s while the 21Mhz version topped out at 580 kB/s.

I still get pauses during transfers every so often (~ 10 seconds) that reduce overall throughput that I don't see on the N800, but these modules definitely work.

Jeff