I will repeat this again. Any 5th will that has much over 2500 lbs dry pin weight will not work with a SRW TV. Take the dry pin weight and cal the percentage of total dry weight. Then apply that percentage to the GVWR.
Example, my Bighorn 3575el
Dry pin weight 2435
Dry trailer weight 12950
Percent pin weight 18.8%
GVWR 16,000
Cal estimated load pin weight 3008 lbs.
Now lets apply the same logic to a trailer with 2950 dry pin weight.
Dry pin weight 2950
Dry trailer weight 12950
Percent pin weight 22.78%
GVWR 16,000
Cal estimated load pin weight 3645 lbs.
So dry pin weight is an important number to watch while shopping, as I did picking the Bighorn, and passing on pin heavy Cardinal's and Montana's in the size range we wanted.
Add a washer and dryer to a front bedroom closet and it only gets worse. And do not forget to add the weight of the hitch(mine is 270 of Demco picture frame and B&W manual Slider) and anything else you put in the bed of the truck.
Chris