I've got a MK with I pilot link to my 898 HD SI and 788 HD DI. I have the 788 on my trolling motor and do not use the 2D sonar. I really like the ability to use any of the three to set routes and go to way points. My son will use the MK hand held and I use the foot control when we are spider rigging. We both have the ability to control the MK when the fishing gets fast. I don't have an issue with the noise the way we fish.