I’m looking at a 2019 Expy Max, but it has only the iV rated tow package (6000) not the max tow (9200). What can make this hi horse power and hi torque motor limited to 6000# of towing. OK smaller rear end gear, but with the 10 speed this dear has less problem towing and creations torque? I will be towing a 24 ft salt water flats boat, 5000# will I have any issues with this 6000# towing Expy? Thanks