I've got the same impression as John: I simply can't picture the protagonists getting wounded
every time they fight an enemy head-on. It's pretty unheroic. I think that only a slight change is needed: make the player choose 1 on a 7-9 and 2 on a 10+ when they
kick some ass. This way, you can reduce harm by 1 even on a partial hit, which, combined with armor and/or an armor-giving move, would be enough in most situations.
Alternatively, you may do it the
Dungeon World way: the opponent deals harm on a 7-9, not on a 10+. Or maybe, on a 7-9, you could be forced to choose 1:
- you deal -1 harm
- you suffer your opponent's harm
That would be a pretty harsh choice if the monster got a good armor and you
need that extra point of harm in order to wound him at all.
Just my 2 cents.