So DD has a generally solid technical swing, but she does have the tendency to want to cast her hands out. I have shied away from buying the RockeTech for this very reason, thinking that a relatively lighter and more balanced bat would be more manageable for her given the tendency.
Well I finally picked up the RockeTech, and, rather counter-intuitively, I'm pretty sure that just swinging it has corrected the habit. The bat is too heavy and end-loaded to let her cast, so she stays compact and is hitting the ball with much more power. We couldn't be happier with it so far.