05-01-2018, 05:36 PM
Yes, a heavy 
weight can cause fishtailing and if you slam on the breaks it can cause jackknifing. But, I don't know how heavy the is on your boat so I can't respond on the 4 to 6 inches.
I had a similar boat and moving it back about 2" did what I needed. I had a scale and you should to if also if you are going to do these adjustments.
Your tow vehicle should have a rating for maximum weights, and I would follow that before the trailer rating, but both should be close to each other.
weight can cause fishtailing and if you slam on the breaks it can cause jackknifing. But, I don't know how heavy the is on your boat so I can't respond on the 4 to 6 inches.I had a similar boat and moving it back about 2" did what I needed. I had a scale and you should to if also if you are going to do these adjustments.
Your tow vehicle should have a rating for maximum
weights, and I would follow that before the trailer rating, but both should be close to each other.