[TowerTalk] Shunt feeding the tower on 80m and radials

[Mike Fatchett, W0MU]

After much deliberation we have decided to shunt feed my Trylon for 80m.
Now we need to layout a bunch of radials.  Has there been any discussion on
using electric fence wire vs. copper wire?  Does the gauge of the wire have
any impact on the installation? Finally just how long should the radials be?
I have seen 5 percent longer than 1/4 wave.

Any hints and suggestions greatly appreciated.

Mike W0MU