CK i didnt mean to imply that i thought it would help with a actual lightning strike , im %100 it wouldnt i was wondering if it might help to reduce a static charge to reduce the likely hood of a lightning strike .
dont little pointy thinks on antennas attract and cause noise ?
Booty, those arrestors will not bleed off like you think they will and certainly not fast enough when the time comes for them to work. Those are either a spark gap or gas discharge type that simple sit there allowing static to build up, often to a couple hundred volts which admittedly is small beans compared to lightning. When the voltage builds up to the point where they arc they then dump that static to ground in a flash, literally. The question I have is do you really want a few hundred volts building up on your coax connector connected to your radio? Are they better than nothing? Yes, but do not get too confident in using them. Good lightning protection comes from using multiple techniques from solid bonding to offer a low impedance path to ground to preventing static buildup that leads to a strike.
Here is an idea what the broadcast business does. In fact this is from the Nautel website. Nautel makes commercial broadcast transmitters, both AM and FM as well as navigation beacons. They have a plant right here in Nova Scotia and I serviced several Nautels as well as toured their plant. They know what they are talking about. The article below is much more involved than a simple home station but it gives some good insight into what is required to have good confidence in your ground system.
http://www.nautel.com/Resources/Docs/Whitepapers/lightningprotection.pdf
Some more technical stuff but good info on grounding and site preparation for transmitter sites. It's a lot more then we need but it has good background info as to why we need what we need.
http://www.nautel.com/Resources/Docs/Site Recommendation Book - Issue 3 (2004).pdf