Does anyone have any experience using the kind of rack you see referees use when racking for the world's best players (O'Sullivan et al)? We frequently get inconsistent racking in the league I play in. Does the pink ball go in the rack with the red balls, or is there a pointer at the top of the triangle which points at the pink spot and allows perfect alignment all the time? If they are the greatest thing since sliced bread I want one and I would appreciate some advice about where to buy. Thanks in advance. Paul