SERMs hide E2 from E receptors in [only] selected tissues.
SERMs increase LH/FSH and can increase E2 levels.
One should manage E2 levels with an AI when using a SERM.
High dose SERMs can lead to very high FT-->E2 inside the testes and competitive AI's [anastrozole, letrozole] cannot work there.
A high dose SERM always should be tapered out.
Do not stack SERMs or SERM+hCG.
SERM+AI is good.
Take an AI all through all cycles. Labs are useful.
1mg/day anastrozole will E2-->zero and will feel very unpleasant.
Competitive AI dose needs to match T levels so it T dose and type dependent.
E2 clearance depends on liver function and some gear can impair that.
Competitive AI's need to work against steady T levels, inject twice a week.
Labs are useful and E2=22pg/ml is a good goal.