so i did some messing around last night in BG's and arenas, and have decided on the following tweaks to the standard spec:
http://www.wowhead.com/?talent=LV0xbIbogbzbZVVzuMxRc
i went 2/3 imp hamstring to test it out, and when it does proc its quite nice in keeping my target from getting away when i get CC'd, such as frost nova or scatter shot. 2/3 seemed enough since i do tend to spam it fairly often.
3/3 BC for the reasons stated throughout this thread, when it is up with 2nd wind and im not the main target, the ~400 hp from both is quite nice. losing 3 pts into CP is something, but i dunno if that 165 hp or w/e it is will really make a huge difference, we had some close games but dunno overall if it would have swung the match.
i was originally spec'd for 3/3 cleave in favor of execute and CP, but actually reverted to imp execute as i found myself "forcing" cleaves and avoiding executes. perhaps it was all this forum discussion in my head or the awareness of wanting to prove my spec, either way after a few games i decided that it was a mental thing lol. while i did get a fair amount of cleaves off, some with SS up, and they did some nice damage to multiple targets, always a problem for healers, i went back to execute, and even if i play my stingy only execute at 5-10% style, at least i know in that 5-10% i getting the bonus.
i think overall this is going to be my spec for 2v2 and 3v3 indefinitely, might change it up for 5v5 this weekend and i will post if it is anything significant.