Thanks guys for taking the time to look at this unit, this is going to be a big upgrade for me and I don't want to be sorry later, like some other older post saying (I wish,I should of, I did't realize ect.) I've been going over what Info. there is on this unit, I found 2 Things I don't like (1) as I read it, it only has 1 year warrenty (2) you can't up grade from the internet. All tha other specs. seem very compatable to the big hammer units, maybe they realize that not all fishermen can afford $1500.00 for the bottom of the barrel HDS unit. THANKS guys I'm really leaning towards this unit (I'm running a 727 Humming Bird right now works fine, going to move that unit to the back by the down riggers. PAP