I'm looking for some advice. I have a Case XX 62024 1/2 with a pen blade that won't open so that it is straight and it's bugging the heck out of me. I have an older one that opens straight out. Is there a way to correct this without taking the knife apart? I'm guessing I could grind some material off the spring or blade tang (the area I've seen referred to as run up or back square) but I'm not sure how to do it without marring the bolsters or liner. Any advice is appreciated.



