A question of Mega Moglification lengths...

Can anyone explain to me how much more beneficial a crafting-based Mega Moglification is to the regular Moglification?

I understand the Moghancements give each craft an extra +1. I am also under the assumption that because a normal Moglification adds a reduced-item-loss-on-fail attribute in addition to skill gain, the skill gained is also +1.

But in the Mega Moglification description, the only attribute raised is skill, and it's listed as "immensely." I'm just wondering if anyone has done any tests to see just exactly how much more skill is gained than a normal Moglification, like if it's +2 to the others' +1 and whatnot, or if it's more like +3~+5 or so, depending on your Mog House's aura and whatnot.

EDIT: so I found basic information for what I wanted to know, found here:
http://www.bluegartr.com/threads/942...g-forum/page31

But they don't seem to go into any detail about the 51-100 or 101+ aura strengths and if it enhances a +5 skill rating. Or if +5 is the cap and you can get either the other two GP items, or fill your mog house with furnishings to meet the aura requirement...

Not that I would want to waste that many mog safe spaces to get the aura strong enough, but it'd be nice to know if we can push it to a +7 skill with all things considered.