2014 Pro XS 250 with torque master case. Previous owner installed a skeg guard. There is no skeg damage. Now the skeg has two holes drilled in it where the guard was mounted. I have questions. Do the guards hurt speed? I have heard they take away a couple MPH. If I leave the guard off, what are my options for filling the two holes left from mounting the guard? Or should I even worry about fixing/filling the holes?