Hey folks, I'm looking to get either a HB 898 or 798 SI unit for my flatbottom aluminum boat. I am leaning heavily toward the 898.

Does anyone have any advice on these two units, pluses or minuses? Also, I have been reading quite a bit about how these won't work very good at speed. Is this just when using the SI ability? It seems that when using the unit in regular 2d mode, it could function like a regular FF.

Anyone have any advice in mounting to an alum jon? Most folks seem to use these units on the larger bass boats, and I'm not sure how much of this application will carry over for my purposes.

Thanks,
Skidz