There has been a long discussion going on about them
http://www.cloudynights.com/ubbthrea.../o/all/fpart/1
More info in about a month i'd say, and if someone would buy Alex's C11 then he could get one as well
If u are considering getting the rc6" be aware of backfocus issuesas indicated here
http://www.cloudynights.com/ubbthrea...rt/1#Post29887