Good to know. I haven’t seen direct evidence of frost-sensitive bloom on the apples grown here, either. Earliest to bloom and set fruit so far are Rambour Franc, AKA Summer Rambo, and Bardsey.
RF/SR set loads of fruit with only the rare viable seed this season, so they were small. Gotta get an early bloomer or two on site for it! Bardsey bloom is simultaneous, but not nearly as many flowers yet, perhaps not even a tithe of the amazing waxy white debut bloom of RF.