Thanks for the info Dave. I "tuned" the antenna when I did the initial install and it was pretty good. I have not connected the SWR meter to it since adding the i-bolt. I haven't noticed any effect from the radio, and no one listening has said it sounds bad, but I'm going to connect the SWR to it and see what it says. Maybe I'll have to remove the i-bolt and go with a lighter weight antenna that won't break the mount.