GTS Expedition vs. Elite: what's your recommendation?

Now that I can't think of any gear that I NEED to buy, and I'm not supposed to buy another yak this year, I'm thinking COMFORT.

I see there are lot's of posts re: GTS Pro and some Elite models, but nothing on GTS Expedition.
The Expedition has a SB (Sport Bottom- 14" x 14" x 3/4" thick), and a Molded foam version that is slightly wider (16" x 18" x 2" thick).

I currently use the standard Hobie highback seat.  Any recommendations between the two?

thx in advance.

I was in your exact situation a few months ago.  During a visit at MBK I saw the Yakpads Gel Filled Kayak Seat for $35. 

I got one and money well spent IMO.  Saved my cash for other toys.  I just swap it around my 2 yaks, it comes with a cord and snap that holds it in place.  Works great on my Hobie seat.

good to know, thx.  I believe Otobe is a fan of it as well.  Maybe that's  a good place to start.