hi, soon i'll get the level for r grade weapon, i'm going for dual dagger. i've seen prices are a lot different to put on single/double sa on requiem or apocalypse, so my question is,if it's better to: 1)get double sa on requiem from mentee diploma, i'll have double pvp bonus at a cheap price. 2)get single sa from dual apocalypse. any advice? thx.