As ever .. it depends!
If you're running fast all day, say in competition, then maybe .. they'll keep cooler for longer and retain good damping. If it's for green-laning or Trials type slow off-roading then probably not. Twin shocks are setup to suit the vehicle and type of drive, and really need to be adjustable for damping and rebound, mostly using lighter weight oil, but 'cos they're dual, they hold more oil overall. Setup depends what you use it for though .. see first sentence.