You are wrong concerning the 28 : it never made results in the standard class. It never broke the LS8 and discus2A domination. A good glider but not a beater.
The 30 was a failure in competition : too heavy, exceeding weight limit. Definitely not Ã* beater.
The 31 is a good cross country glider but not a beater in competition.
The ASG29 was and still is a beater in competition !