Thoughts on a large twin keel for world cruising

[Muaddib1116]

I saw a larger Reinke online that looked like it would be a great go-anywhere adventure vessel, and it had me wondering about how the twin keels would behave in the open ocean.

I've read through a number of threads about twin keel sailboats, and they all seem to be limited to discussing boats less than 40' in length, mostly in the UK for coastal sailing.

The obvious consensus is that they suffer in upwind performance and that they are slower. But how would this arrangement do in downwind sailing on long passages, surfing down waves? Would it increase the risk of broaching? Or would the twin keels stabilize the boat's yaw?