its one thing to claim that your god is a personal god. but you start claiming that your god is a universal god, the god of all people, then thats where clashes of "personal experience" come in. of course an atheist's personal experience is going to clash with this.
i dont know how many times i've heard from christian saying "if you just let jesus into your heart, and blah blah blah". and before people starting fuming over generalizations, how many times do i need to hear this from christians before i can start generalizing?
my point is, when its my personal experience that there is no universal god, and your claiming there is, and all i have to do is "let him in my heart" then your claiming that somehow my experience is flawed. i havent "tried" hard enough or some crap.
at the same time, i realize that the same is true of an atheist experience to a christian experience.
there is no way these 2 types of experience cant be in conflict. but it goes both ways.