On Saturday, January 25, 2014 9:43:57 AM UTC-6, Jerry Stuckle wrote:

And radials on a ground mounted vertical go (preferably) UNDER the ground.

Actually, for a given number of radials, slightly above ground is
better than under ground. But not by too much.
Most would probably not notice the difference, but there is a bit..
Elevated radials really need to be a good ways up in wavelength
to really live up to their potential.
Four radials at 1/4 wave up is equal to about 50-60 in the ground.
At 1/8 wave up, you need at least 20 or so to equal 50-60 on the ground.
At one foot up, you probably need 50-55 to equal 60 in the ground.
So really, the real advantage to burying them in such a case is less to
trip over when walking across the yard. :|