John,
The different panels will have a somewhat different I to V curve, and
thus the maximum power point for each may be a bit different. Depending
on the MPPT controller, this may mean a reduction in power transfer
efficiency, but should still charge the battery. Some MPPT controllers
generate a particular I to V curve for the attached panels, by sampling
over time and various light conditions. Still better than a straight PWM
approach.
Jon

On 5/28/2015 8:08 PM, J B wrote:
> The initial test run seemed to work great and pulled in over 10amps during peak sunshine