I have a 2011 205 and didn't have any luck removing mine without damaging. There a 2 small holes on the bottom of the seat. You have to get a Philips head screwdriver up in there at a difficult angle to remove the screws. I was able to loosen 1 screw but not the other without stripping so I gave up for now. Definitely interested on your outcome.
You can have an upholstery shop make some tabs with snaps like the earlier tournaments had. They are attached with staples so you don't have to take your factory cushions apart. Installing the mating snap piece on the boat is easy.
One thing I learned is that it is pretty hard to get the screws back into the same hole so don't even try.