Bonuses using Combination Weapons

Dec 27, 2008
I was experimenting with some of the combination weapons on my Privateer. My Privateer has trained Slashy 1,2,3, Smashy 1,2, and Staffy 1,2. When I equip a Slashy/Smashy weapon, I get the bonus stats from Slashy 1-3 and Smashy 1-2. When I equipped a Staffy/Smashy weapon, the only bonus I recieved was from Staffy 1-2. Should the Smashy bonus be included into the weapons attack strength? I was just wondering if this is by design that some of the combination weapons are designed to only give the 1 bonus or is this something that was overlooked?