Peter Duniho wrote:

Due to the additional failure modes, it could just
as
easily reduce the odds.

I'm not sure how you're seeing this. All additional failure modes are
independent of anything that exists w/o the tower. That is, any way that
the tower can fail has no impact on the "see & avoid" technique that would
be present with or without a tower.

At least, this is what I see. What do you see differently?

- Andrew