I have recently restored a Slingerland Radio King snare with a clamshell strainer. It's my first experience with this type of snare mechanism. I got Puresound replacement wires, and installed them, and the drum sounds great! But, the problem is that the wires basically never disengage. No matter how loose I have the tension screw on the strainer, the wires are always on; they just go from tight to a little looser, but never fully off the snare side head. Is this normal? Am I doing something wrong? Any tips much appreciated.