Quite right. I'm afraid I haven't got any documented accounts to hand, but aircraft such as the JU 87, and others with the required endurance and crusie speed, were often used to 'shadow' an incoming bomber stream, in order to try to establish which path they might take at a particular turning point. Bear in mind that the 'average' allied mass raid, RAF by night, USAAF by day, employed possibly an extra 25% (or more) aircraft involved in feints and 'spoofs', armed and operational, or just , for example, on a 'round trip' course, in order to confuse the enemy's defences and predictors as to where the main target was going to be.