Shooting at steep down hill angles "does not" mean you should aim lower.
Introducing a new fault "will not" fix the old one,,it will just add to your list of faults.
As already stated,you need to bend at the waist to maintain your correct alignment.
Even doing this,you may still have a tendancy to short draw,so practice at the hight you intend to shoot at,,,and get your alignment sorted there.
Personaly I always aim for the exact place I want to hit,if I couldn't do that,I'd want to know why "and I'd fix it when I found it.