So, can somebody tell me the basics of production skills?

[Blaaaaaaaah]

I have three characters and each has a type of production skill. I think the Scroll and Stone combination is good. Stones usually suffice for me anyway, so I rarely used HP or SP pots. Stone makes a lot of money, and scrolls do too but the materials are harder to get, I think? Well, I don't often get summoned beast leathers for scrolls, while I always get mats to make stones (it could be just the monsters I've been fighting). But yeah, scrolls are good because you can use them yourself to train as well, so you can sell and use them, depending what you want to do.