Here are 2 schools of thought.
1.HM can regrow a full head of hair that wont fall out:
In this case, a guy would use Prop & topicals not to enhance future hm results but to hold on to what he has & to slow down the balding process UNTIL hm is released.Once hm is released he will drop all this b.s because he knows he will regrow an entire head of hair without them.
2.HM is unable to regrow an entire head of hair & is just used as filler.
In this case, a guy will have to keep taking pills & lotions to maintain what he has & to enhance the results of hm.Just as pills & topicals enhance the results of surgery.
Either way,I think a NW 7 would be wasting his time taking pills or topicals.
A N7 wouldn’t need to do anything special to prepare for hm other then save his cash.
Pills & topicals are for those who have started balding or have plenty of hair left & wish to hold onto it for several more years.