We recently moved to the Nash 29S and found the current WDH we had worked fine, except I felt the trailer waggling a bit more than I was used to (I have 10+ years of towing our prior trailer). I decided to upgrade my hitch to the Reece Dual cam. Now it tows smoothly.
Most of the prior advice still applies. I had the load balance correct with the appropriate weight on hitch, the front wheel well measurement was spot on, tires are aired up to their max (51 lbs) and they do just fine.
After ensuring the additional washer, tire pressure, load balancing etc, then maybe consider a different hitch. For me, it made towing a tiring experience to being comfortable once again.
