Brian, the smooth moves are adjustable for your weight…
There are springs in the back of the seat and an adjuster on the top with a weight guide. I have my seat set to my weight, the others riding in the boat can adjust the passenger seat as necessary.
As depicted in the picture and very poor paint skills…. The red line on the left shows the weight of the person sitting on the seat, the arrow (or what i tried to look like an arrow ) on the top is how you adjust the seat for your weight.
You want to take a ride in my boat this weekend, i’ll have it down at everts!!
Jami