Hate to be the bearer of bad news, but the ED damage on now your Shako & Ars is not applied. I can not link to other sites, but the topic is covered by a few other forums (might be here as well). The TLDR the ED in a helm or shield "Good old ED + min/max damage bug, but applies also on new stuff. TLDR is "if it's socketed in weapon, all fine, else the socketed item's ED is overwritten by maxD and minD"