Ok guys I need some input from you. I bought a Ultrex link trolling motor about 6 months ago. I am not completely happy with it. My major issue is spot lock. Maybe I am asking to much but this thing doesn't keep my boat in place like I thought it should. I haven't been on another boat that has it so I have no baseline.When ever i use it with no wind its all over the place. It may drift 8 to 10 feet and then its like it just woke up and drives hard back to the spot, its back and forth from there. Sometimes its hard enough to cause you to grab the seat. is this normal? If there is a good wind its better but not great. I have adjusted the boat scale, recailbrated the compass etc...