I went from an LCX-19C to an HDS-7 with LSS-1 on my bow mounted on a gimbal by my trolling motor. For extra screen real estate, failure redundancy and economy I also still run an older Humminbird 997c si in the bow well.Th HDS-7 uses the older grey plugged PD-WSBK pod transducer that was glassed in at the factory in 04. I use the internal GPS on it to NMEA 0183 information out to the Hbird for bow-pinpoint gps location. It also networks to the LSS-1 which I vertically mounted in the front of the starboard rod locker (in it I only store a push-pole, anchor, raingear, a couple of helmets (for rain or hail), a change of clothes and sometimes a tempress seat/butt seat in case a fickle family member changes their mind on what seat they want nothing that would bang into it). The structurescan transducer is on the trolling motor. It also NMEA 2000 networks to a temp sensor on the transom and a Mercury SmartCraft NMEA Gateway (Level 2) for future playing with.The 997c on the bow as I said receives its primary gps input from the HDS-7 via NMEA 0183 but also connects to an InterLink which is connected to a GPS antenna on the stern and a Humminbird 987c si in the console. This 987c NMEA 0183 networks gps data to the SmartCraft Speedo for GPS speed (I cant seem to get it to take from the SmartCraft NMEA 2000 Gateway, probably because its an older speedo) and has a side and down imaging transducer mounted on my jackplate.This is how it is now but will almost certainly change by the end of the year. Im a systems architect by profession, a geek by nature and a spendthrift by upbringing so Im always messing with it to see just what all I can do with what I have or what I can get cheap, which is why I dont have any 10″ displays and mostly older equipment. The structurescan stuff is just so cool I had to have it though, but only when on rebate of course I used to be a regular on this board up until a couple of years ago when a hearing and balance disorder put me down, but the Lord provided a newly developed surgical fix and Im back to kicking and screaming again about 98% from before but so much more appreciative of my blessings and place in life! Im very hard to reach by phone and the 2% I lost is mostly in hearing anyway but I respond to email daily, so feel free to email me if you have any questions that you think I could help you with.Deke