I have the MG xi5 and love it.. we long line troll a lot and it does well for that..the spot lock works better on the MG in my opinion from the MK..I cannot tell a big difference in the noise ,but a couple friend has the MK and says that the MG has less noise turning. I do like that the remote on the MK has the screen to tell you which mode you are u and what speed your on...I run Lowrance electronics so everything was plug and play with the MG now they will work with either with different wiring adapters..hope this helps