I have some developing gyno so I'm wondering if it would be just as effective replacing letro for aromasin in the Anthony Roberts PCT?

My cycle is/was

1-15 600 mg Test Enanthate
1-3 50mg/ed DBol
8-15 100mg/ed Tren Ace

Just started week 12 and I'm going to start usiing C Bino's on cycle Letro use to fight off the gyno... and then going to the Anthony Roberts PCT with HCG , nolva and Vit E... but was going to keep going with the letro instead of aromasin..

Thank you