I read somwhere something about the off-hand weapon feat and how it impacts on what type of weapon you're havin' in your off hand. Something about small weapons - schimitars, short swords, knives and such are better in your off-hand than large weapons.

Anyone got a clue?

if you are using a small weapon in the off hand, along with both feats, it's only -2,-2. The same goes for a player missing one of the two feats (two-weapon, or ambi), in this case it removes 2 from the total penalty. I don't have my booklet in front of me, but I think the chart explaining this is the last chart in the index (one of the very last pages).

Ahh, I remember that but I somehow have misplaced my booklet. But how do big weapons in the off-hand changes the penalties?

With medium sized weapons, the best you can go for is -4,-4 assuming you have both multi-weapon feats.

Thanx