Very interesting progression of development- from Marstrom A-Bananas to higher-lifting M20 Bananas: no S's yet eh?
Note regarding my avatar <-- just over there. This '72 wooden Cal Fuller A-cat has fairly primitive aluminum surface-piercing foils plus T-foils on the rudders but without proper angle of attack capability on the rudders. It has been foiling quite nicely for 7 years. It has never crashed in a pitchpole. When ventilating foils lose lift, the rig just loses altitude, its belly touches the water, then the rig takes off again.
Re breakage: I broke 2 aluminum masts 7 years ago when old mast fittings failed: a repaired Fiberform carbon mast used since then has been problem free, even running a TheMightyHobie18 spinnaker. I have never capsized my A-cat rig, foiled Hobie16 or foiled TheMightyHobie18 since starting this research program. The latter 2 sometimes "leap and crash" as shown in the yellow Banana C pic, but not violently: I suspect they need better rudder AOA. see at www.fastsail.com/catcobbler
In contrast, T-foil-lifting rigs are pitchpoleable.

Note also my signature below from Tom Edison- Boy is THAT true!