Went from 15LY jump range to 23LY on my Python build, a 153% increase increase in jump range. I also went from 108% poer load to just 98% for the price of just 1 Sulphur! This build has 2x 3C beam lasers, 1x 3C multicannon, 2x 2F multicannon, and two 6A shiled cell banks! Having everything available and not having to shut down modules is such a nice thing to have!

Upgrading this ships FSD, I had to roll on grade 4 6x and grade 5 6x as well, so it does not seem like a hard and fast rule, there seems to be a little leeway in how many times a roll is needed to complete a grade.