"Memory" is an intrinsic property of all thermoplastics, which allows
them to return to their original shape after being deformed. Exceeding
the memory capacity of such plastics by deforming them beyond their
ability to reform, results in permanent deformation.


This is why some "kinks" and similar can not be removed from nylon,
even with heat, as the line has lost its capacity to reform at this
point.

Picking out wind knots which have formed very tightly also results in
more or less irreparable kinks for the same reason.

if you don´t remove wind knots immediately ( which have nothing at all
to do with wind, but are the result of poor casting and tailing
loops), then you might as well not bother, as the line is weakened
anyway.

MC