User blog comment:Emptylord/Blogs/Journey to Platinum - ADC Thresh/@comment-5241267-20131001065533/@comment-3974211-20131028222449

After putting it off (as I came to the same conclusion as you) I finally picked him up in a blind pick game. His damage feels no different - at all. Mechanically, anyone who is good at clicking on the ground between attacks (orb walking?) will not notice the change at all - and if you're not good at that, we're talking a loss of damage per hit (since that's all that would ever charge between attacks).

The change is really subtle. Instead of "time since last hit" -- which meant that it would wind up a teeny bit between two attacks -- it's now "time you're spent *not attacking*" (think Ashe's passive, but it starts gaining charge instantly instead of after 3 seconds). If you click to move between each attack you're basically getting around the change.