  A gap in a paper of Rubinstein-Scharlemann is explored: new examples are
found of closed orientable 3-manifolds with possibly multiple genus 2 Heegaard
splittings. Properties common to all the examples in the original paper are not
universally shared by the new examples: some of the new examples have Hempel
distance 3, and it is not clear that a single stabilization always makes the
multiple splittings isotopic.
