"Joe" wrote in message
om...

There you have it, the only info available was information that could be
gleaned without the use of any electronic device and no engines used.

JohnE

One mistake., You said all the information must be gleened without the
use of any electronic aids. And unless your using a lead line you were
cheating.


I noticed that, but he actually said "could be gleaned" without electronics.
The modern depth sounder actually give less info than the traditional lead line,
especially to someone very familiar with the area. Even the old "spinning neon
tube" sounders gave a lot of useful info. The "tridata" style sounder is
worthless compared to a basic fishfinder.