Quote Originally Posted by Cobra_Joe View Post
The 788 HD DI. Is a new model that only has DI. Smuckey is correct that with the 798, 800 and up series that had SI, Hummingbird came out with a download to give you DI after Lowrance came out with DI. It was a competitive offering by Hummingbird. You will not be able to get SI on the 788 DI.

While DI is cool, in my opinion the SI is awesome. I would spend the extra to get it. I cannot tell you how many honey holes i have found 100'-150' off the side of my boat that I would of missed because I would never have gone over that spot.
In the basspro marine 2011 catalog on page 14 humminbird has a 788ci HD si combo offered. They do not show a picture of it but at the bottom of the description it has what the unit does and side imaging is on it but does not have down imaging. The price is $699,maybe I am reading this wrong if someone could check it out that would be great!