Hi, i have 200 medium refines right now and since there is a rebate right now i'am looking to use all of them. My refines are all level 4 but i am confused if i should use it all on 1 item and make it level 7 or spread it evenly and try to get as many level 5. If i spread it evenly, i know the wish credit will be gone after the event, so can you guys help me