Hello Laura,
I edited a copy or your simple handrail object so that
the ends return to the wall in an "arc".
see attachment
One thing I don't know is, does the ADA code require that
the handrail overhang or extension be measured from
the termination at the wall or at the start of the straight
part of the extension.
In my code, the extension goes from the start of the
straight part to the termination at the wall so
the curved part is within the code required extension.
If the ADA code does not allow this, you will have to
fix this in the GDL code.
Peter Devlin