I'm trying to gear/gem/enchant to get the best performance I can out of my holy priest. I know everyone is saying you need 12.5% raid buffed, however my guild has more of a casual playing style so we aren't raiding yet and I'm just now getting into heroics. What I want to know is how much haste do I want to achieve unbuffed? And which stats should I change around if any? I did my first pug heroic of ShadowFang Keep yesterday and it went well. (However I always run with my husband who is a tank which makes it nice for the communication during hard encounters) We didnt have any wipes but if I can improve on something for the harder heroics, I'd certainly like to. Thanks

My stats are:
Mana: 75875
SP unbuffed: 5326
Haste 9.25%
Mana Regen OOC: 3032
Mastery: 14.78