Talk:Ash (Warframe)/@comment-65.13.130.53-20130815195341/@comment-68.35.41.76-20130817015851

As an experienced Ash player, I would say that Rush is not necessary unless you plan to quick run planet missions you needed catching up on. If you're using the Scorpion Ash helmet, a Streamline would be a little bit necessary to even out the energy required (and more) for abilities.

TL;DR: Rush for rushing, Streamline for overall less energy spent on abilities.