Yea, 120 bushido really isn't necessary, its just nice to have. Pvp is a numbers game and that 3-5 extra damage can mean the difference between life and death, however only in very rare circumstances.

I've been playing my bokuto mage a lot lately, and nerving people with that template is just like a secondary way of hurting someone. I'm still a spell caster at heart, but man... if you're in the middle of a spell battle with someone, then you all of a sudden throw in a 50-60 point nerve hit on top of the spells that you're throwing, it can really turn the tide of a battle in your favor in an instant.