Hi there ngmayo
thanks for the message. I did not get very far looking for the info as it was getting expensive and new cards where about £250.
We decided in the end that as we would need to change our navigation
any way as it was not compatable to have AIS
etc.. we decided to bight the bullet and spend money
on the raymarine
C90w which got us safely back from ireland
to the UK ( we bought the yacht in Ireland
and changing the equipment
in ireland in euros was cheaper for us - another insentive!)
so I am afraid as you also will find out there is not alot of help out there on the plotter I must say the C90 is really good I need a lot more practice as it has so much it can do but we can split the screen
and have radar
on and plotting is quite easy and it was brilliant when we had fog
on our way back.
not what you want to hear when you have just bought a new boat but god luck! and happy sailing!