FormerlyHemlock
Hero
IME, that was less of an issue compared to "adding to subtract."
But as outlined previously, adding to subtract was never an issue. A +2 weapon in AD&D gives... +2 to your to-hit rolls. If you roll a 16, you can treat it as an 18. This is "adding to add." However, because addition and subtraction are inverse operations, you can indeed subtract from the target number instead of adding to the to-hit... but if you find "adding to subtract" confusing you don't have to do it!