I threw some content on the empty Fusion page along with a bunch of tables reflecting my notes about my observations around how the magnitude/cost of the maturity improvement varies with the combination of enhancer cards. I believe that with enough data points it should be possible to construct a spreadsheet that would make it possible to predict improvement quantities (basically, reverse-engineering the fusion calculation algorithm). I'd love to know if other players observe the same numbers that I've been seeing.
I'm also curious about figuring out a better (more usable) representation of the data. I hope some of you have some ideas!