I'm not really qualified to answer you here, but here goes anyway.

I suspect that either your base design is flawed, or the restrictions on heuristics would render the program useless. Also, I don't think it would be quite as easy to control heuristics as you seem to think.

Also, AI people who actually know what they're talking about, unlike me, seem to disagree with you. Again, I wish I could remember where it was I was reading about this.