As far as I can see the only difference between the two coin programs on the ORX(last page of the user manual) using the HF coils is that Fast has a reactivity of 3 and Deep has a reactivity of 2. I'm just trying to figure out why XP did that rather than giving the user an additional User Program where more variations would be possible. Using the same frequency on both coin programs just doesn't make much sense to me. I wonder if XP could do an update and change the frequency on one of the coin programs. For example, 14.4 on one and 28.0 on the other. Just a thought.