The Scandal is an later motion compared to the Dark Legend Solid. Shorter hook zone compared to the Scandal so youll use the Solid when/if the Scandal tends to roll out from deeper angles. From what I've seen, the Scandal is a very good backending motion from deeper in, so I don't really see the need for the Solid unless you want to start of with it then go to the Scandal.
If you want something stronger, look into the Original Paradox or the Maverick(if youre just wanting something new). I more of a fan of using what I know will strike so I'd go Paradox. That's not to say the Maverick isn't good, just I know of the success of the Paradox.