Not sure if this is the right place. Just installed star gazer, it seems to enter the course a little slow .8 mph and gradually speed up through the course, times are ok, but the skier can tell that we are speeding up. Shouldn't it be at speed as we enter the course? It consistently does this. When we pull without the skier it is dead on for speed. This is a 98 Nautique, with paddle wheel. I am using one magnet system. Any way to solve this? Any help would be appreciated. Thanks.