Hi ken. Welcome to the best boat board going.<br /><br />I haven't used the X15MT, but have always had good luck with any Lowrance product.<br /><br />Red sky at night. . .<br />JB
Have had one for about 8 months now. It is the best graph for the money. Mine has GPS so I'm able to see speed(very accurate for trolling), I can also put waypoints in so I remeber good holes. The graph part is even better with a large screen unbelievable clarity. With upgradable software it probabley will last ten to twenty years. MAps are awsome. Just remember it is a computer so if you are not good at computers stay with something simple like an X-85. Also go to their web site and download the demo software. It will allow you to do everything on your computer that you could with the real thing. Make getting to know your graph alot easier.LCX-15/LCX-16 Emulator
