Tempress Orthopedic boat seats?

After a forum search, I didn't find an answer to this. Hoping some Tempress owners will chime in.

I was looking at the Navi style boat seats on Boat Seats (tempress.com) when I noticed their Probax Othopedic series. The Probax looks super comfy but cost a lot more than the Navi style. Is the Probax worth the extra money? Are they really that much better or would the Navi be good enough?
I broke & eventually had my tailbone removed years ago, so I need something more plush than the stock seats in my '94 Nitro. Additionally, my brother fishes with me a lot & has back problems from a bad parachute landing when he was in the army. (Airborne out of Ft Bragg.)

PS. I know a lot of folks will say to look at Millennium seats, but I think those would look a little out of place when compared to the driver/passenger seats. Just my opinion.

they are very comfortable, i had them in the Helm style seats in my pontoon... switched them out due to the fact they didn't fold down and were always in the way when running down lake and my seat mounts caused them to lean back too much for my liking.. they are great for a bad back though. Imagine fold down model would be just as or more comfortable.

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Well they don't look out of place in my boat! More like socks on a rooster! But they are the best seat i have ever sat in. Looks ? i go for comfort, with my back ,since i have no disks in L4-L5 . Can fish all day with them.

I have the probax series and they are great. They have considerably reduced my back pain when setting in the boat al day.