I am purchasing an above ground 27' round by 54" deep AquaLeader Reflexion pool. It will be a salt pool using the Breeze 320 SG system, a Hayward S180T sand filter with the Hayward 1.5hp 2 speed Power-Flow Matrix pump. Asking opinions and advice on whether I should go with the Raypak 156 or Hayward H150FD . I know the Hayward has the Cupro Nickel heat exchanger and have been told it's a big benefit. Any advice or suggestions would be a huge help. Thanks in advance for the advice.