I bought a Minn kota 55 lb . . installed the I pilot the first trip out was unbieleavable , but went out one day this past week and was disappointed as I tried to spot lock on , tthe wind maybe 10- 15 mph would move me of the spot 15 -20 ft before the motor would lock on to a spot and then it didn't hold me on the spot . I have a 17ft , aluminum boat . The only thing I wonder about was I was under some power lines and don't know if that effected the response . Hope to hear if anyone else has run into this or has had problems with the spot lock not locking on in a reasonable time ???