Dragoons: Crit Class with no Crit?

[Viridiana]

Here is why i believe this: In the numbers presented in the graph, with 340 CHR you have a ~6% chance to land a critical. with 440 CHR you have effectively increased that to ~12% chance. So if these numbers truly have a linear relationship, then by definition decreasing you CHR from 340 to 240 you would literally have ~0% chance of a critical hit

Your base crit rating at level 50 (where testing was done) is 341. Your base crit rate is ~5%. The values given apply to increases beyond the base level, at which point it becomes linear.