I loaded spiperwire on two rigs last summer while fishing for Kings here in Alaska.. and found the following to be true: it is almost impossible to break, but, it does tend to bind up when fighting a heavy fish. It also get's kinked and then tangled quite easily. Finally, it tends to slip knots when heavy tension is on the line. All in all, I found it to be more trouble than worthwhile and will NOT use it this season<br><br>