Quetzalcoatl.Kyrial said:
»97 is actually the last level Visions zones will skill you up, as they go to a max of level 90. 98 is when 90 stops being DC and becomes EP.
Duriumshells have worked fine for me. They're in Vunkerl Inlet (S), and are 93-94, which keeps them DC at 99. Got hand-to-hand to 424 (A+ cap) there without any problems, and as an added benefit you'll get plenty of Ramuite from the frequent thunder weather (and some Garudite from wind weather).
This. I've seen 5 solo/duo people here at once and still didn't make a dent in the number of shells available for pulling.
There's 20 mobs here I believe. Which neither aggro nor link. In a space barely bigger than your Mog House.
Also besides the bonus of Garudites and Ramuites there is frequent Too Weak Air Elems for easy Wind Cluster farming on the side.. Nice depending on your craft/s of choice ^^