it's probably an REM -roduct and for them close is good enough. one reason why I try to stay away from REM. OK I'll look at all posabilities, not having seen it. Could be simple or much more. Check for slightly tapered ends, sounds nuts but could be and that would be an easy fix. Now it is a new cardboard type material with new foam could be a tad long also look at your sail panels, have they relaxed from not having a board in there? Have you tried it with the back seat in? mine bowed a tad without my seat then I realized that it helped hold it down. But Yes I would put it in with the seat then cover it with a sheet and cut a couple of 1 X 3 boards that run nearly the whole leingth and evenly space a few bricks on them like 4 or 5. Hope for some high humidity and give it a week or so and I'll bet it will fit like a glove.
Best of luck.
P.S. if you have speaker slots cut you may see brown fuzz from when they cut them out. I thought it looked terrable so I got some fingernail file boards and sandes all that crap out then tuned it face down, weighted both sides of the cute to avoid over spray and shot some black puff can from the back. Looks gerat and no more brown fuzy slits in my tray.
