I upgraded to a Terrova w/ IP, and its really nice to have. I longline 99% of the time and had a MG foot controlled TM before the Terrova/IP. I don't use the IP for recording the tracks, but use the AutoPilot, & the cruise control for setting the course and speed, then I can focus on the fishing rather than controlling the boat like I did with the MG. I use the spotlock/anchor lock to hold the boat in a general spot while re-tying, looking for a different color lure, etc. The constant on and variable speed allows me to set a speed and forget it from .5mph on up depending on what the fish want. The Autopilot will hold a course (compass heading) but does wander off with help from wind or current but will get back on course eventually. I've use the record a track several times but you have to remember to set it to record before you make your run and I never know if the fish are gonna be at that waypoint until I get there. I usually run several different waypoints/marked structure in a track, but the fish may be on one side or the other so I usually don't use the record a track that much. A Terrova with AP would still be a good thing for longlining without the IP imo.