[QUOTE=walleyewarrior Did it hold course in rougher conditions?[/QUOTE]

I'm not familiar with the TR-1, but holding course in rougher seas would be my concern. I have a 25' Sportcraft, with a 9.9 Yamaha ( high thrust ) kicker, and sometimes i may have to hit the throttle boost , momentarily, to bring the boat back on coarse, in rough conditions. I 'm using a Panther T-4 ( electric throttle & steer ),no GPS, but other then an occasional course adjustment in rougher seas , it performs flawlessly.