In previous generations, EVs only took effect upon level up, meaning that a level 100 Pokemon was stuck with the EVs you had previously trained it with.
With the edition of Super Training, and specifically, 'Reset Bags', you can re-spec your EVs at any time. But do these new EVs still only take effect upon level up?
Say I have a Gardevoir with mixed EVs on level 100, and I want to respec them into Special Attack & Speed for example, is this now possible? or will Resetting & Reapplying do nothing?