Official ruling would be nice, since the rulesbook is ambiguous about this.
An example;
The target has AC 18, and Touch AC 12.
If I roll 15, do I still manage to touch the target, or do I miss?
Is it a matter of intention, where you have to specify that you are trying to make an actual Touch Attack Action, or can you still expect to hit Touch AC with a normal attack as long as the attack lands between the touch ac and the regular ac.
