autopilots

My boat, a '69 Columbia 28, is right on the cusp of displacement rating (6600lbs and I am at 6500lbs) between the Raymarine ST1000 and ST2000 tiller pilots. My question is, if I am going offshore and will be doing a fair amount of single-handed sailing would it be worth it to spend the extra $...

I have had a Robertson 200 Sail Autopilot that came with my CSY 44 when I bought her 16 years ago. She has performed flawlessly under sail or power until the last month. Turn AP on to auto setting, picks up compass heading and steers well for about 2 minutes, then starts acting like low on...