how do the "fixed enhancement scrolls" work?

-Snip-

Thanks for that, from some rudimentary math that I did, my suspicions were confirmed. If they have not altered the the tier-based bonuses on enhancement (150-199 4ATT, 200-249 5ATT, etc.) and if MEEs don't deviate from this pattern, it is always better to use MEE for weapons. Since they added fixed stats, I though they might not add the normal ATT per enhance, this is not the case and they tack on a significant amount of additional attack.

AEE are now relegated only to Tyrant equips and EE to 0% Explode Chance equips.

You mention these (MEE) were fairly common, were they common enough to accrue the 68+ needed to 12 Star a weapon? And another question, normal Protects will work with these, right?