User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-82.132.248.57-20121102232447/@comment-2214216-20121105174803

""2: After ukanlos in MHFU you could upgrade low/high rank armours to G rank defence. Poor G-rank mind. Really though, it's not worth the effort. G-rank armour is better. Probobly best for the pro's who completed (well...) MHF2 and whizzed through G rank without getting any new armor. In other words, about 4 people.""

There're some really odd armor combos that required low/high rank armor parts, so being able to upgrade to G-rank defense was quite handy in MHFU/Tri. I made 2 of this sets after I beat Ukanlos. However, as I said, effective lower tier [as in low, high, g ranks] is really hard to find and are for really odd sets. They also have very odd skill sets.