You can get gains easier on a human but gargoyles get a bonus to imbuing. I would leave imbuing on the gargoyle just my 2 cents worth. There was a bug where you could craft certain samari armor pieces and they would auto craft with the mage armor on them automatically combine this with 100 arms lore which will give you extra resist or a weapon and this would give you extra DI. Then you do not have to imbue much on the item to be at the point to get gains of these pieces. Also you can gain I believe up to 10 or 12 times off the same piece of armor/weapon. I usually unraveled oak wooden bows until the high eighties then started with some simple and cheap resources like amber or citrine and magic residue. With these you could put a luck on items and it was a lot cheaper to get gains.