Adjust worldmodel hands to match sweps?

[KarateWalrus]

I see with the offset command how to move the gun around -

SWEP.Offset = {
Pos = {
Up = -1.0,
Right = 1.5,
Forward = 5.5
},
Ang = {
Up = 5,
Right = -10,
Forward = 180
},
Scale = 0.85
}

But that just moves the worldmodel of the swep and adjusts its size (scale). I dunno if there is a way to manipulate the hands so that they match up correctly with the weapon. Some weapons no matter how you move them they'll never match up with the hands quite right unless you could alter the hand positions