Ok well I'm not going to do that, sorry. But I have had this jacket only for a couple of weeks, and my others feel the same. So if there is glue in there, it softens and becomes ineffectual within a few weeks 10 out of 10 times.
But that's exactly the thing. If you don't cut it open now, you may never be able to remove the glue. If it's soft, you can still do something about it.
Wearing an NSM suit today (my first). The shoulder seam is about 1/2 inch past the bone. No artifact (the bone is about wear the wadding starts). No gkue as far as I can tell, but I didn't cut open any seams.