[Vana_B]

He understands some function might go down but still wants it to function. Any information is welcomed.

From my experience if he wants to maintain function, he is best off to cycle off of the herbs if/when things start to go south.   I am a big fan of massage with topical herbals and lots of pumping/nipple play.  

I have had some results from using PM and SP topically, and if I start having performance issues switch to a fennel or fenugreek topical until things start working normally again.   But I am not looking for huge gains, just bigger/more sensitive nipples and more protrusion.