...ElBeethoven....please clarify where the problem is....
are the vertical faces you worry about the ones in the "saloon", the main interior space with the non-moving ports/windows?
or the vertical faces you can see/touch in the forward cabin / forepeak?
if the former....then don't worry so much...you are compressing the cabin liner into the deck structure. There is nothing between them...because the cabin liner is supposed to be cosmetic, really. This is not true forward of the mast in the forward cabin. No liner in there, just the "other side" of the deck.
-km
aka, "sell out"
S/V Beyond the Sea
C&C 35 mkIII