Thanks for everyones help.
Wiskers got me lined out. I ordered the interlink today.
I screwed up last year when I bought the 788ci. It was on sale and it had the dual card slot and some other features i was looking for.
So when it went on sale I jumped not knowing the reason it was on sale was because they had a newer model coming out.
I would have been better of to have bought the newer model with the HD.
But live and learn My buddys at Kentuckey Lake said it wouldn't matter what GPS I have I can't catch fish any way.
It will all work out I will need to sell some of Wiskers way points to make room for the ones that belong to Sixfin that I will be hunting.

Thanks again