I found that any avid lever was the way forward, SD7 if you will use the speed dial adjustment. I use Avid Altimate arms, which are amazing but as Matt has said, any avid arms are very good as are the set -ups i've used with new Shimano Deore arms. A Linear slic cable is a must. As Matt has said a booster makes a massive difference to the hold of the brake, i found the actual vee brake post mounts flexed slightly without one, i use a Salsa carbon booster which has been excellent.