G'day Armistead,
Can't help you with the chart I'm affraid but I once had an odd thing happen while playing sh3:
On one patrol only, and for no apparent reason, the recognition manual was displaying the various compartments ("sweet spots") superimposed on the ships' images!
Don't know if I accidently stumbled on a cheat or if it was just a bug, but maybe someone will know why it happened and whether it can be made to happen in SH4.