You wouldnt have super-wide field covered mate...
I have my 480mm focal length APO, will be getting the ED127 and then will look into getting another 8" RC or a 10" maybe...
The 3" feather touch focuser can easily be used on the 10" RC, all you need to do is find out what the rear thread is on the RC, then contact starlight instruments and request an adapter be made from that thread to the 3" FT... They already make the adapter for a 2" Feathertouch to the 8", although a 2" focuser will vignette the 5D sensor.. So it would be better to go to a 3"..
As for the small pixels with a long focal length - don't worry about it.. Oversampling is great... just make sure your guiding is tight!!
