I already have the helix 9 with side imaging, now I need to get a trolling motor. I plan to do a lot of big lake trolling with it, so I don't want it coming out of the water in waves, but will sometimes be shallow bass fishing. What's better for my situation 60 or 72". I also want the ability to cursor over on the sonar and spot lock the spot and have the boat go to it. It sounds like the terrova doesn't interface with the graph as well as the ultrex or ulterra. I'm a little concerned about the reliability of the ulterra self deploy if I'm in below freezing conditions. Based on the limited research I've done, I'm not sure what the best fit is?? Would like some opinions from people with the same hull.