CWM 184.108.40.206 and long boot times - although seems it isn't consistently long. Some times will be a little over a minute (rare), most times is 2-3 minutes and longest been about 6 minutes. I'm on 6.6 now and haven't done a clean flash in months. When 6.4 came out, I was on it for about 2 days but went back to 6.0 stable as I was getting random system hangs (seemed to be related to watching videos using Chrome browser) and long boot times. On 6.6 so far though, video watching seems fine but boot times are still long.
Edit: I also change my DPI to 280 after every flash. The smaller DPI is cool but not for my "mature eyesight".