Unique has a "spacer" available to go under the front of the seat to lean it back. This helps a bunch on the comfort level. Of course, you MAY have to redrill and remount. The foam they (their supplier) uses in the seat is pitiful. Have an upholstery shop replace your seat cushion foam with some MORE DENSE.
When I take a long cruise, I have a nice dense foam tapered cushion I throw in to sit on. Can ride all day!