Then yes going by maximum magnification in perfect seeing for a SCT is amout 50x per inch of aperature, you are going from 475x to 550x magnification. So if seeing is good enough I'd guess you'd be pleased, but why not go to a evening viewing and compare these scopes yourself before you part with $$$?
Also definitely read
http://www.cloudynights.com/item.php?item_id=1585 a review from an owner of a C8, C9.25 and C11, particluarily on back focus and image shift. For visual the C11 gets best praise, with the C9.25 as best all rounder and best price performance.