[Matt]

You're trying to straighten your bent right arm, but the left arm keeps the right arm from fully straightening. The feel should be that if you take the left arm off the club, the right arm will instantly straighten out.

Whether you 'feel' a push or a pull, you're pushing. The right triceps is being activated regardless of your personal feel, and that muscle is used for pushing (as opposed to the biceps, which is used for pulling).