A 0.3 Ohm coil on the CAM-M would probably pull much less than 10 Amps from each battery. With two batteries in parallel and low voltage drop the HG2 seems like a very good choice.
That's what I'm trying to learn to calculate, how much amp draw occurs with dual batteries at different ohms. I'm new to parallel battery mods and I did search the battery and charger subforum but am having a heck of time finding the info.