how is it that a petition for instruction for a trust is able to side
step the clause where if one contests or seeks to obtain ajudication
they lose their share? furthermore, the petition claims words were
"left out" do to a "typo".
as you may well have guessed, the addition of these words would shift
the control and bulk of the estate dramatically.

My guess is:courts typically ignore clauses, such as this, because
"contesting" is hard to define. Does exploring the possibility of
successfully contesting, constitute contesting? If the document
clearly defines (not easy) the meaning of such a clause the judge MAY
take it seriously.  Neil