Originally Posted by Peter Seddon
Whatever you do don't use the prop saver adapters for a Quad use a secure collet type adapter (make sure it runs true on the motor shaft) and don't forget to balance the props.
The props he is using cannot be used with collet type adapters, because the hub is only about 5 mm thick. But they are pretty effective. I am not convinced, that a collet type adapter is needed at AUW of about 150 g. my quad is absolutely fine since a long time with the prop saver ones.