My point was that older aircraft only committed to land flap once visual contact had been established. The Herald went from 5 degrees to 30 and required a hefty push. The Strat had more flap settings but this technique of selecting flap very late destabilised the aircraft which due to the slope already had a high rate of descent.It is worth reading the link I posted a few days ago written by a Boac Strat pilot about how to land the aircraft
At my last employer anything over 3.5 degrees was considered as steep and we frequently flew approaches to airfields such as Marseille which has a 4 degree slope.