[Armin]

I don't actually understand what's being attempted here.

Skills and techniques are intended to be costed on a per-level basis, so they're not really designed to work with a 0 point-per-level cost.

Or is the intent that there's only 1 level of the technique, ever, and you just want the user to buy that one level? If that's so, then entering the cost() as cost(1/0) or cost(2/0) should do it.

If you want to have them pay 1 or 2 points, and then still be able to level up the technique for whatever other levels may normally exist, for free, them I'm pretty well stumped on how that would work.