Haha I like you Doctormog but really AF1.5? That is just stupid. There are no 1.5 items at all in FFXIV. Here name a half item for me! You can't because they don't exist. For all intents and purposes that Mythology gear is a +1 version of our quested AF. It is higher item level and same item model. If you don't like AF+1 then the second option would just be calling it myth gear or some variant.

Also +1 denotes HQ what? None of my HQ items have a +1.