I had a pair of CS2.4's and recently traded them in for CS2.7's. I don't find that toe-in is necessary at all. The imaging is fantastic from almost anywhere in front. BTW, the 2.7's definitely have better articulation than the 2.4's and don't seem to lack for a full sound (compared to other speakers of a similar price range; I compared with Aerial 6T and 7T).
I do have a question (and being a newbie, please let me know if a different forum might be preferable). My room is approx. 22' x 13'. I have my entertainment center on the long wall with the speakers fairly close to the large cabinet. I figure I'm sitting maybe 8 to 9 feet from the speakers. When I'm sitting, my ears are pretty level with the mids/tweeters and the speakers are still too bright (I have Transparent cables and an Ayre Integrated, so the perceived shrillness is not due to these components). If I stand against the opposite wall the whole system sounds very good. Sorry for the long prologue. I am wondering if I either need to eliminate the cabinet's interference with the speakers or if the ultimate solution will be to move my system to a short wall so that I can move the speakers away from the wall and cabinet and also move the sitting to a range greater then 9' away? As things are now, the bass is getting lost somewhere. I'll eventually experiment, but I'm wondering if others have had experience with this?