Have not seen this work very well in most games, depends how you do it, unless dummys have a level ranges.

Also just because you do X DPS on Dummy level 50, does not mean you will do X DPS on Mob Level 50 due to attribute types and resistances, buffs, debuffs you have, positioning, all that good stuff.

The damage against NMs/Bosses/Mobs seem way too varied that cannot be just grouped into a "1 setting fits all" that will work for a dummy...