Structure Fishing Question

I've been watching the recent Woo Daves dvd I purchased on structure
fishing and doing some off season reading. Here's where I'm hung up I guess.
On the dvd with Woo he's fishing a lake, a big one and obviously there's
"some" current, but not like one would have on a river. And the rivers we
have around here flow pretty darn fast.

Knowing that large mouth bass don't like current, how does what I'm
learning about fishing off shore mix? I mean if I pull off the banks here
and try to fish a ledge 30-40 yards off shore the water's really flowing.
Will they hang on a ledge in deep water where there's current? And if not
isn't all this off shore stuff mute for where I fish? I"m haveing the same
visualization problems with all of the structure I've been reading about
e.g. humps, sunken islands, ditches etc. Anyone that can help reconcile this
for I'd sure appreciate it.

The other thing is that I know I can run over the structure with my
graph, but we have our fair share of rough fish here and cats etc. so it
will be really hard for me to tell the difference. Thanks in advance for any
thoughts or clarifying help.

--
God Bless America

Josh The Bad Bear