The problem with increasing duration of Pro/Shell is that they become gimmick spells. If you have them last 60 minutes, what is really the point? You could just lower the Att/M.Att of mobs and get the same result.
It 'worked' in FFXI because you needed a WHM to get Pro/Shell 5. Here, anyone can cast Pro/Shell if they really want. There will pretty much never be a situation where you don't have Pro/Shell due to the class system. So then whats the point in having them if they're on 24/7?
Is it also annoying to constantly re-apply poison/bio/dia/etc? Pro/Shell act like any other skill you have to re-apply every 30sec-3minutes. You can't single out these spells when nearly every other skill/ability acts the same way.
They definitely need to increase the potency of Pro/Shell, that's for sure.
