If you check out the link (included), you will see the issue I am currently considering addressing when I haul out for 8 months, next. I am in Mexico, and will be hauling out to get back to some business concerns, planning on returning in Nov. These cracks already existed at the compression post to coach ceiling/headliner joint, and apparently the previous owner had attempted to address them (see the reddish filler). However they have not changed in any substantial way in the last 18months we have owned and sailed Seanorita. There is a slight 1/8" dip in the starboard side of the fwd edge of the seam. However, the area all around it sounds very hard and solid. We had noticed some evidence of minor coach healiner/ceiling sagging in a couple spots, before we bought the boat. A lot of these have disappeared when we added the new traveller and assorted coach deck hardware, and their associated backing plates below. Had anyone had a similar issue, or addressed headliner detachement? Should I drill a bunch of holes, dry out any wet spots if found, then inject epoxy and prop up from below with jacks?Any suggestions will be sincerely appreciated as always.Many thanksBob Pullenpullenbob@yahoo.com