Anybody ever build any stake beds by driving wooden stakes into the bottom of a lake?

I got to thinking about the best way to create a lot of cover and I think a stake bed would be it. I could load up 100-200 wooden stakes into my boat and build a post driver with a long handle so I could drive them into the bottom in 10-15' of water. That would be quicker and easier to me than taking out a few at a time in buckets or attached to pallets.

Opinions?