I read hans book he was saying they used ju 87s without gun pod to escort the gun ones where they that maneuverable making hard to shoot at
During the BoB, several Ju 87 pilots would wait until an RAF plane had lined up on their 6 then lower the dive brakes and get a few shots off as the attacking fighter overshot the Stuka. Several escaped that way.
Roll is typically more important at high speeds and high altitude. Banked turn capability is relatively more important at low altitude and slower speeds where the CAS battle takes place.
Not that I would recommend Ju-87 or most other single engine dive bombers for air to air combat as they were just too slow. IJN D4Y (Judy) dive bomber is one of the few that were fast enough to compete with fighter aircraft. Twin engine Me-410 dive bomber could fight other aircraft in a pinch too.
"Stuka Party" was obviously a battle incentive and a youthfull legend.]