User blog comment:Emptylord/Champion reworks/Quinn and Valor, Demacia's Wings/@comment-7709681-20141104012827/@comment-3974211-20141104044526

It is not uncontrollable since it requires specific user input. At most, it's undesired - but you must still choose to activate it. Her ultimate is still available to quick-tag-back. That said, I have implemented Flow decay.

The transformation now always lasts a specific duration, although I'm considering to reduce it or have it function similarly to Glory In Death (Valor still generates Flow while moving but it decays passively and the decay amount increases over time).