At the current level cap, I agree with punk and register. I have three commandos, and I've tried about 15 different builds. A level 5 or 6 heal is not a waste of points. The commando's defense buff, while being a large boost (742 def total on my main), is only a short burst, and it's meant to absorb damage at your current health. A high level heal has all the same characteristics with the added bonus of adding to life total when there is no damage to absorb i.e. in between mobs. Even for those who feel like they can spare the creds on pots, heal used concurrently, or rotated, with the defense works wonders in mass mobs or boss fights.