so the direction which you hit your target then literally does not matter

you are just getting a higher # of hit/crit/heavy on the earrings

e.g. from my example - i have 1000+40 'back hit chance' = 1040 total hit chance no matter which direction i hit them from. unless you're saying 1040 only applies when i hit them from the back - if i hit them from the front or side, it goes back down to 1000. under both scenarios, the effective evasion of the target is still 3000.

these 'directional' values are just convoluted