NRF24L01+ Dynamic Payload configuration without ACK?

What are the correct PTX and PRX configuration settings for using dynamic payloads with auto ACK disabled? Can I just clear EN_AA and set EN_DPL and DYNPD for the pipe I'm using? Or do I need to set EN_AA as the datasheet states in the DYNPD register section? Then do I need to set EN_DYN_ACK and use the W_TX_PAYLOAD_NOACK to load my payloads? I've tried various ways and have only been able to get correct results if I flush the TX before each payload write and transmit.