User blog comment:Crimson Storm Mich/Guide: Omni Evolutions and the SP system/@comment-27028870-20160414005636/@comment-28144746-20160416110757

Initially I tried fusing them one at a time, and I only got 1 sp every other fuse or so (not surprisingly). I thought this made it worth it to fuse them one at a time, but then I noticed that when I fused 5 fodders at a time, I'd get around 2-3 sp anyways.

I'd just fuse them 5 at a time. Save yourself the work.