1. Please keep it that Evasion is effectively an opposed test, not a success test. One of my greatest issues with the DH/RT/DW/BC/OW system is that the players possess the power to actually tell the GM "No, you don't hit me, because I succeeded on my dodge check." This is disruptive to my narrative powers as the GM, and is in violation of the spirit of rule 0. It should not be so obvious that I am cheating.
This might have worked in the new beta system, but it will create problems if introduced into Only War attack rules. Namely, it will create a situation where a single attack is always the hardest to avoid, as it not only comes with a to-hit bonus that will statistically generate more DoS, but it will also be the only attack mode where the effective difficulty to avoid the blow isn't capped in some way.
Also, the rules don't exist for you to exert control over the game, they exist for everyone to exert a role-appropriate level of control over the game.