There have been reports (Corsairs) of Dyneema lacing sawing through the fiberglass
; it seemed natural, but this class has moved away from it.
Bear in mind that the stretch of properly sized polyester lacing, compared to the stretch of the tramp, is a rounding error. It is both stronger than the tramp and only a few inches. This is obvious.
Dyneema may last longer, but potentially at the expense of what it is attached to.