Hello! I have a Firestik 18’ FireRing cable that I am installing in my Jeep. I noticed after running the cable that I inadvertently marred the unterminated end and need to trim it by about 1/4" to 1/2" to get a good connection to the PL connector. Will this adversely affect the performance of this cable and to what extent? Am I okay to use it 1/2" shorter or do I need another cable?