Apologies you're right I can get to your logs that way, if only I had done one more click.
Re: Chaos Cleave, it's rarely a viable option over First Blood, even in a full demonic build it is still best to take First Blood. Chaos cleave does perform well in some certain niche situations but I wouldn't call skorpyron one of them, I still think first blood would perform better.
-Nevetheless, you've continued to keep chaos cleave for the other fights, significantly hampering your DPS in those fights - you need to remember to change talents if you have talented into a specific spec for one fight. Preferably by taking tomes with you
I can't really add much more to your logs as you seem to play with a style I wouldn't play sorry - the only thing I noted is that you're not double potting. It all makes a difference and your whole guild should be encouraging it.
You've also been a bit unfortunate with your legendaries but look for every opportunity you can to game sephuz - look for adds that are stunnable, interruptable and get yourself on the priority interrupt table in your raid