I currently have two Lowrance LCX-28C HD units on my boat. I'm wanting to upgrade the maps in these units to Navionics Hotmaps Platinum. I did some research on the Lowrance website and found out that I had to do a free software upgrade for this to work. I downloaded the upgrade from the website and installed on both. Before I invest money to purchase Hotmaps Platinum, has anyone else done this before? I'm a little hesitant at this point to move forward. I really like the 3D maps and the detail in the Platinum version. Any advice, insight or suggestions would be greatly appreciated.

Tim