I'm guessing just as he mistakenly forgot about FLBs going to SL30, he's mistaking the gun from ori shop as a bow. And anyway to answer his question, again no, FLB'ing would be the priority for ori if you're limited on the amount you have. If you're doing gemcha and farming disasters daily, SL'ing stuff isn't hard. And FLBs as you've now figured out, boost the grid way more than anything else. So again, the priority for oris is FLB'ing. Only when you have excess oris leftover after you've FLB'ed all the wpns you can, only then should you experiment around buying stuff. Priority is FLBs first if you want to be efficient with your ori usage that is.