unusable

Hello, I just bought the Galileo 2 (G2) from Scubapro and I am experiencing a bad moment when it comes to its deco stops. On a same dive, same profile, I get 2 minutes of compulsory deco stops on my Scubapro Mantis and 3 minutes deco on a Galileo Luna, while on my new G2, I have 10 minutes at...