I would check further into that pin weight for this reason. I have also been looking at those. And looking at the Keystone/Montana new specs, it list the 3711FL pin weight at 2,790, but the 3710FL at only 2,530. As I understand it, the only difference is the 3711FL has the residential fridge where the 3710FL has the standard RV fridge. And further the weight difference between the two refrigerators is negligible. So why the extra 260#? The 3711FL has an inverter for the refrigerator and possibly an extra battery. But still ?????
And to further cloud the issue, the 2015 specs for the 3711FL list the pin weight as 2,565, only 35# heavier than the 3710FL. Why is the 2016 3711FL listed 235# heavier than the 2015 3711FL? The 2016 3710FL is listed as the same pin weight as the 2015 3710FL. Why did the 3711FL gain weight when the 3710FL did not?
Something just doesn't seem right about that 2,790 number. You may have more spare than it appears.