Stevo and Bruce - you're talking about the space above the metal chassis and between the armrest panel and the wood frame, right? In other words, where I have my fingers above?
I solved the problem today by adding another fastener or two along the top of the metal chassis, screwing the side panel into the wood frame. I used the same stainless steel fasteners that are at each end, so it looks original. The panel is now uniform looking. I didn't want to add foam behind the panel as it seemed be be causing an irregular bulging in places, i.e. it wasn't even.
