holy crap those pages upon pages...
and oh, so i'm not the only one that doesn't bother maxing out weapon/eido to even 200..yet, and i've been playing since the very beginning..
all of my grids are 100% or above pretty much and i managed that with mostly 130 (slowly built up to 180 recently) and 80 (120 now) eidos... but i haven't actually used 100k gems in the gach afor a long time now... haven't bothered to level any weapons recently cause lack of motivation.. but hey i guess if people have more slots, that's less time needed to go enhance random weapons to get rid of N mats and just keep getting R from gacha.. would be so much quicker but... for someone like me that's obsessed with doing single jewel draws.. not possible
... i think the max amount really needed for anyone is 200/150