I have essentially the same TT and after messing with the set up the TT stays directly with me, except when you have high winds. Don't care what anyone says nothing will cure that. What are you towing with? Are you you towing with water in the fresh tank? Tire pressures set right? How are you loading this TT? reason i ask these seemingly silly questions is as soon as. Picked up my 334RBTS, it was about totaled on RT81 bout 15 miles from the dealer. I'm very experienced driving TT s and ain't afraid of anything but this had me close to a second heart attack. The dealer had tires pressures all screwed up, fresh tank full, hitch not set up right. You will find out that these Jaycos are heavy and are very sensitive to all the things I mentioned. Also if yours has the Chinese junk tires like mine had then I would invest in getting them swapped out for name brand tires. Sidewalls in those tires flex too much and get to bouncing all over the highway. The axles are also sized to the max. Mine is sitting close to 11k loaded.
East Bound & Down- We Love Camping :)