Posted this in the Trailers & Towing forum too but this forum has much bigger participation:

I have a tandem-axle leaf spring trailer that came under my 2021 Ranger RT198P. While it has more than enough load capacity and ample quality construction, it bounces a lot over some bumps, road transitions. It bounces much more than on the other boat/trailer combos I have owned.

Who has successfully modified their tandem, leaf spring trailers to eliminate bounce, improve ride? What did you modify: change spring rate, add shocks, add sumosprings, change suspension completely, etc?

Did you do the work yourself or did you have a pro do it for you?