I am thinking about getting the Humminbird 797 si combo. I am looking for some Info from those of you who either own or have knowledge of this unit.

Questions

1. Does it come with 1 or 2 transducers to mount?

2. Do you have to buy a GPS antenna or is it internal?

3. What is the best price you have found & where?

4. Where is the best place to mount the transducer(s)?

5. Do you recommend buying one with the preloaded nav map? I already have a Nav. Hot Map card in my Matrix 87c.

6. Will it also "look straight down" like other units?

7. If you have one how do you like it?

Anyother info would be great! :D