If your children want 50:50 then that is a good starting point but it will
not guarantee that outcome.
Other factors to take into account
are logistics, especially in relation to the
school run; routines they currently
have, i.e pre-arranged extra curricular and leisure activites; other family
links/routines which should be maintained; whether your proposals are
realistic and compatable with your work schedule; whether your wife was
the/is the primary carer; any special needs your children may have,etc.
Your children are of an age where their feelings and wishes will
carry more weight in Court than those of younger children. In addition, it
won't be long before they will become the "enforcers of their own contact",
especially when they are teenagers, dictating the parent they will see and
when.
Many people claim shared
residency only works if
the parents can work together. However, there is more evidence to suggest
shared
residence actually leads
to better communication and less conflict in the long term.
Google the custodyminefield. It'll direct you to all the latest peer
reviewed and supported research which supports shared
residency, many of the
papers actually being written by UK researchers.