The only motive was to allow some enhanced maintenance of fertility. hCG stimulates LH receptors very well and FSH very weakly [crossover]. FSH will improve sperm production and quality. Introducing a SERM periodically should have some benefits in terms of maintaining fertility. For a young man, this may be important. There is no medical data out there and the major unknown is individual activity.
As always, I try to direct guys to nolvadex and away from clomid because of the strong estrogenic side effects of clomid that some guys experience.
10mg would be sufficient. For how long is unknown, but it takes time for things to happen. There is no data, but perhaps hCG plus a LOW DOSE SERM would be beneficial, avoiding the following:
Do not use both at once as this will create LH overload with the risk of LH receptor desensitization; which would be absolutely contrary to your objectives. And too much LH receptor stimulation can cause a large amount of T–>E2 inside the testes which cannot be managed with anastrozole or other competitive AI’s.