I just bought used Paradigm 11SE Mk2 and see at least one of the 8" speaker surrounds is unglued from the cone.
The cone is poly is I ordered glue for that purpose from Springfield Speaker, Pro-Grade Black Rubberized Speaker Glue Adhesive. permanent hexane-based Tacks in 5 minutes, fully-cured in 24 hours.
I am guessing - feedback please. The surrounds seem pliable and undamaged.
-Leave the speakers in the cabinet
-use a thin probe to separate whatever surround easily separates
-apply 1/16" bead around the inside of the surround
-apply circular motion for 5minutes on the surround compressing it to the cone.
-leave alone for 24 hours.
for the other three 8" speakers that appear to have some light curling of the surround from the cone, not sure.