Well, if that's the case then I won't worry about it.. i'll follow
you're advice and just put a sub-base layer of sand down under
the concrete pad. It'll save lots of money, time and trouble for
sure.

You can go here and see what Rohn recommends for the base and guys .

http://www.rohnnet.com/

Look under the Online Catalog and then under the GT series.

Looks like they recommend about 6 inches of compacted sand and gravel with
about 2 inches of the legs put into the sand/gravel. Then a concrete base
about 4 feet in each direction.