"Chris OCallaghan" wrote...
The finish cylinder has its place in competition. But not to the
exclusion of the finish line. Many of us still contend that it is
better to race to a visible marker rather than to a virtual point in
space requiring refernce to instruments. Heads up rather than heads
down.

Flying head down is never necessary. The center of the finish cylinder is
almost always close to some visible marker on the airport. If it isn't, I ask
the CD to move it so it is. My software beeps when I cross the boundary of the
cylinder, does yours? Finally, I only glance at the computer once in a while to
see if I'm falling below glide slope, which I'd also be doing with a 50 foot
gate. But then again, I'm not anal about finishing at precisely 500 feet...

As for the FARs, aircraft regularly take off and land withn 500
feet of people, structures, and other aircraft at commercial airports.
This is by necessity.

91.119 Except when necessary for takeoff or landing, no person may operate an
aircraft below the following altitudes...