User blog comment:Lukeatlook/Pyro's Item Overhaul 4 - Welcome To The Jungle/@comment-7709681-20140411193123/@comment-4813965-20140411205554

As the note to Bloodrazor states, this assumes that changes its properties from cooldown reduction to on-hit damage. It's a part of the bigger picture.

My version of Stinger has 30% AS and 15 on-hit magic damage instead of 10% CDR. It's part of making a better mid-game pickup with a convenient build path.