I'm a little curious about upgrading weapons. The instruction booklet says something about unlocking hidden abilities when you mix the right stuff together, but I haven't unlocked anything like that yet. I'm on Chapter 9 or 10, and I'm really wondering what I can do to upgrade my stuff. Since gil actually has value in this game, I don't want to waste it.

Let's get some discussion going on things you've mixed, etc. I'm still using a Gladius (second weap you get for Lightning), but I have it upgraded to lvl8.