Yeah, I think all of our newer mowers have a spring seat, and a ferris????? What is that generic, might be a little more for the Dixie chopper, but nice you have it you won't go back. There more expensive for a reason. You get what you pay for.
Here's the specs I found, probebly bigger than you need but, and there the only one who offers the rod handle to move your grass deflector while still sitting, you can even do it on the go.