The orange flex material is pretty stiff which surprised me. I switched from the spring type adapter because my old ones had center setscrews which easily damaged the leadscrew. My replacement adapters have screws, that, when tightened, pinch the adapter closed tightly around the leadscrew and therefore doesn't cause any damage to the leadscrew. After closely inspecting and realigning everything related to the 'Z', these adapters seem to be performing very well. No regrets so far.

Definately save nozzle ends if contact buildplate