I actually feel like I did understand your problem with "free." I guess I just didn't state that I understood you because I thought you expressed yourself rather well. Instead I just tried to show you my position.IceBear said:But you are misunderstanding my problem with "free".
Circumstance 1: Heighten a 1st level spell to 4th level: Cost = +3 spell levels
Circumstance 2: Heighten a maximized 1st level spell: Cost = 0 levels
Why should it be "free" in #2 and not #1? That's not consistent, and (besides all the mistakes in the rules) the spirit of 3E was to be consistent (higher is always better, etc).
Circumstance 1: Heighten a 1st level spell to 4th level: Cost = 0 levels. You are welcome to cast the 1st level spell in the 4th level slot without the feat, then the feat raises its effectiveness to level 4 with no cost. Very fine distinction, and practically it means the same thing to the player and is usually just a dumb choice
Circumstance 2: Heighten a maximized 1st level spell: Cost = 0 levels, but not legal. I still think that it is balanced though.
Circumstance 3: Heighten a 1st level spell to 4th level after you ran out of 1st, 2nd, and 3rd level spell slots: Cost = 0 levels. This is actually the same as circumstance 1, but gives a reason why it might be done. In my opinion, this is when heighten spell is used most often and practically it is free.
I was trying to say that it is already used most often as a practically 'free' feat. If you want to just heighten certain spells for the fun of it, it doesn't appear that free since you raise the spell slot too... but that is usually a less effective choice.