I have only been able to enchant my CP160 crafted Legendary gear with white glyphs even though I have higher quality glyphs in my inventory. As I look at some other people's builds on external websites they show the same gear with enchantment numbers that would reflect Legendary glyphs. As an example my Cuirass of Julianos has a maximum magicka enchantment of 585 (white) but I see multiple entries on the build websites with 868 (gold). If I enchant a dropped piece of gear I can enchant it with any level of glyph I have in my inventory. Do I need to do something else to be able to use high level glyphs on crafted gear or are the websites showing impossible combinations?