User blog comment:Pgrobban/Announcing Crystal Calculator web app/@comment-24956068-20150625193037/@comment-25968376-20150625193350

Currently it's looking at the expected crystals/day for the next level but if I'm going to implement the +9 lookahead mode, I will do it the same way you did on the Crystals page, where the highest "margin" from the current level wins.