User blog comment:Sirebel/Mathematician Required - Apply Within/@comment-26829117-20170423130833/@comment-25956839-20170423151505

Would be easier to work with the smallest data set possible? e.g. Ford Focus RS with 4 upgrade trees (Eng, Dri, Bra and Tyr), total 11 upgrades. Then build up to bigger sets? or does is a bigger set make the maths easier?