for all these early event u get a few 0 uncap SSR or 1 full uncap SSR. by the time u have enough to fill grid, it already maybe 6 months of game lifespan. u will have a lot of modfod and unwanted SR and R weapon in that time.

meanwhile if u farmed a nice number of ATK weapon skill SR and level to skill level 10, it very effective. example, 5 lightning SR axe in my weapon pool with 8% ATK bonus each from weapon skill lv10 is already 40% more damage from my lightning team. i think i stopping at 5, all others new axe will use for uncap for more stats.

leveling weapon skill take a lot of fodder SR and R though, so i dont go beyond skill level 10 for now. any extra after, i save for leveling SSR weapon skill.