I have been using Trilene XL for most of my fishing for a while now.  It does the job but there is one thing I don't like about it.  When I get a snag and have to pull the line until it breaks the line gets weak.  Tie a knot, give it a jerk to test and the knot breaks.  I have to cut off about 30 feet of line until I get good strength again.  Is this a problem with all monofilament of just Trilene XL?