Yeah never put different sockets in weapon that ones that increase damage, it isn't worth to waste such big chunk of flat damage. All your damage scales off that value.
You can get 250% AR from MO, and if you lucky oil, you have 20% chance for superior with %AR roll which adds bunch more.
But trick is, with those tu light gauntlets you don't really need go crazy with ar. I ignored it completely until 110 ubers, and then just adding whatever cheap source i have. Even 15k will be plenty, because those gloves reduce real monster defense to 0, especially bosses that you fight over longer period of time.