It looks like the fore and aft sails are far too resistant to rough weather. Upper staysails and flying jib doing just fine, as the ship is laid on its beam end in 48 kts.

I'd say the flying jib has no business being set above 20 kts, and the staysails should go away when the topsails are reefed. For some reason the foretopmast staysail proved weaker than the other headsails.

Belated thanks for the feedback. I looked at the strength of the fore-and-aft sails, and made them weaker in the new version. If I left too many headsails out when the wind increases, it was to balance the sail plan.