What I find annoying is that for weapons before L60, the off-category damage does not go up with plussing. If you have your Void Staff plussed, it does not increase physical damage, if you have your Puppet Dagger plussed, you don't get any more magical damage.
Now, that rarely comes into play, but it can. My Warlock/Rogue alt never had much rogue gear, since I never intend to play rogue side. Still, it had to be leveled since WL/R relies on shadowstab so much. And the best way to level the side you don't intend to play is leave his gear junky, but give him good weapon so he can survive mobs for questing.
So, since most of his gear was int and matt statted, he should've been able, as R/WL to get decent DPS out of the magic side. But he could not, and that is because he can't use a staff as R/WL, and plussed daggers only plus the physical side, not magic side. So, all of his matt was doing darn little since the weapon had so little mdam.
Starting at L60, they are plussing both sides, so plussed Raksha or Yawaka Thorn has both phys and magical damage go up. Same goes for every weapon since then, AFAIK.
He is one confused dwarf. As R/WL he wanted to do magic with his dagger; now as WL/R, he is shadowstabbing with his staff.