Controlling 6 window motors with Arduino mega 2560 R3

Thank you for such a quick response.

I was doing some research into the library for the dual motor shield, and I have several questions:

  1. In order to use 6 pwm pins how would I specify the pins, in the read me file on github I did not see a place in the constructor to add pwm pins. I noticed that there was another forum post on this issue, Modified VNH5019 shield library for 20kHz PWM with Mega , where someone updated the library but I was a bit confused by what they were doing.
  2. How often should I check for errors, once a second, once a minute?

Thanks
-Joel