Topband: electrical wavelength

[Bob Kupps]

Hi it's still flooded here but I wanted to fire up one of my verticals by itself on 160 and feed it with a half wave of Comscope RG6 since I don't have enough 50 ohm line to reach it. I have a AIM 4170 to cut the line with but my question to the group is - how much variation from published nominal velocity factors have you encountered in practice when cutting lines to length? How accurate do we need to be for 1/4 wave lines?

73 Bob