This is going to make a seriously kick arse luminance for some colour data Peter... Looks like a pretty unreal setup..
As Fred mentioned, I'd imagine the 4" RCOS flattener is required for the 16803..(although I'm not overly sure if the 14.25" supports it, or if that requires the upgrade to the 16" RCOS..?) As you are most certainly aware - she's a BIG sensor...
Do you have any ideas when you'll have filters? or when STX-AO will be available.... Normally I would have thought with the FL of the RCOS and the relatively small pixels of the 16803 that AO would be required for really really sharp stars, seems I would have been wrong....
Despite the B&W, you're producing some really really nice images with the camera already..
Awaiting some technicolor action!
(as I'm quite sure you are too!!
)