Cassius I'm not thinking in terms of rationalism v feeling in my comment; I'm trying to get into the details of living our philosophy. Don is probably clearer than I am in explaining this, but I think there is a key distinction to be discussed. Perhaps the lack of clarity between desire and pleasure gives opponents something to attack, so there is that....
When I think of a desire, I think of something which is a conscious thought. Examining a particular desire can stimulate a pre-rational feeling or reaction (pleasure/pain), which serves as a guide to whether or how we pursue that desire. Then we can consciously think about our desire and our feeling about it; this is where rationality fits into the Epicurean scheme as I understand it. As opposed to beginning and ending with rationality and squelching the feelings, which leads to very bad outcomes.
Anyway, I think that this type of discussion is valuable in addition to the battle against anti-Epicureans, and I think that drilling into the details can be helpful to those who come here looking for practical ramifications of EP. Much more useful than "life hacks:" leave those to the Stoics! EP is deep enough and coherent enough to support examination on all levels.