[H] Are there any good raiding guilds that raid only twice a week?

I'm searching for a guild that has skilled players, but only raids twice a week (or so). I know you can hardly clear all hardmodes in that time, but can someone point me to some guilds that fit the criteria? Maybe a second group from one of the bigger guilds?

I've raided durinig wotlk and cata on retail and cleared hc raids before, but I just can't spend 4 days a week on progression. I'm playing enhancement/resto shaman.