I have a 1987 M25 and I can hear some creaking when walking on the deck on the starboard side (a bit on port also), just in front of the side portholes. It doesn't feel "squishy", but there is some give when I put my weight there.
Before I start drilling holes in the deck (yikes...), I was wondering if other M25 owners experience the same thing. Is this creaking normal, or should the deck feel rock solid in that location? I suspect some of the creaking might come from the friction on the wooden bulkheads inside the boat...
On a related note, does anybody here have experience with deck repairs on an M25? I'm curious as to how the deck is built, especially under the genoa rail (which is elevated compared to the surrounding deck).
(disclaimer: sorry for any wrong/misused nautical terms, french-speaker here