Topband: 4 Square

[David Cole]

I have been reading with interest all the posts regarding the ways in which to protect 4 sq against lightening.
I would like to have comments to my simplistic approach to this problem as I am currently installing a 4 sq.
I place a 5 foot copper earth rod at the base of each vertical - each vertical is earthed to this rod via a suitable relay  at the base of the vertical - when I wish to use the 4 sq and apply 12 volts to my 8 way directional relay box I also apply via the coax feed to each vertical  12 volts which switches the relay from earthing the vertical  back to the relay box. 
Can anyone see any problems with this arrangement - and would there be any change in the phasing (is so by how much) by feeding the 12 volts along the feed to each vertical by the introduction of 0.01uf  DC blocking capacitors.
 
Dave G3RCQ