The cone sort of pulled itself back into shape after sitting for a while so it's not oval or anything, but when I push it in gently at the cone/dust cover joint you can see that the crease wants to flex.

Should I paint a couple of coats of thinned dammar just on the creases to bond the fibers together? Some other kind of goop? I've got some duct tape left over from the last time I did my sneakers...

Thanks in advance,
John