Well the Mk2 Mini survived the weekend with only minor damage to the hammock seat. We had a very moist 15-20 knt wind almost square to the beach. The yacht performed very well, leaving the Hiko's ski LLM well behind in the mist. It was still very twitchy though as the small diameter axles still had too much forward/aft flexing.
The plan now is to replace the main frame with a new Y frame "ski axle" setup.