[Rhodes22-list] V-berth base movement

[Ellyn and Sam Moore]

New subject!
We have had a problem on every trip with the thin plywood of the (aft end of the) v-berth cushions slipping forward off the narrow ledges of the half bulkhead. The  cushions are backed with thin flexible plywood and don't support weight well when not supported at their aft end. Do others have this issue? How have you dealt with it? Ellyn wants it fixed and I have had no success. The cushions keep sliding forward an inch or so and dropping down. Help!
Sam Moore '77 R22, Rhodester