If your top roller is really close to the goal, it could be because the rubber bands spread outward when the roller is spinning fast which would cause them to scrape against the goal rim, the underside of which is really sharp for no reason
If your top roller is really close to the goal, it could be because the rubber bands spread outward when the roller is spinning fast which would cause them to scrape against the goal rim, the underside of which is really sharp for no reason