Re: "Tricky" energy and the committed attack
I can understand your frustration, as your learned habits will be hard to shift. But if you want to really get to grips with aikido you'll just have to go through the process of re-education. In the end you will have both ways of responding.
Aikido deals with the committed attack not all the feints that may come before it, feints are there to intimidate and confuse, if you don't respond the feint is a wasted gesture. At a higher level aikido can be used to 'provoke' the attack in a way that puts the aikidoka at an advantage.