Ok I just bought a new boat with all the goodies. Running two 1198's networked with Ipilot link. It's quite an upgrade for me. Took the boat out out last weekend and saw, in my eyes, a huge disparity between my hand held Ilink and my graphs as far a speed. My graphs showed .3 while my I link showed .9. I am now running all the current updates and the receiver is an AS GPR. I am currently in the process with HB to swap out my other receiver with an AS GPS HS. Just looking at the way my fishing line travelled in the water I have to believe my handheld, not the graphs. Just wondering if anyone has come across this yet.