When to Use Adex?

Hey guys just had a question on the use of liquid adex. I am going to run sustanon EOD for 12 weeks. My question is do i use adex @ .25 EOD no matter what or only if i start to experience any signs of gyno? Any advise would be greatly appreciated. I will use liquid nolva for PCT.

Previous cycle 5 years ago Deca/Test
8 Years training exp.
Goals are to gain more strength and lean out.

sustanon EOD 500mg total week 1-12
anavar 60mg ED week 6-12
nolva 40/40/20/20 week 14-18
adex .25 EOD week 1-12?

34 yrs old
6 ft 1
210 lbs

Use it from beginning…once you have gyno symptoms, you are too late