I use Nolva from time to time for a couple of weeks to help stimulate some natural Test. For me, it helps to reduce atrophy, and increases my sex drive above and beyond my normal HRT. Could be due to a temporary elevation of my Total T while on the Nolva. Not all of us are privileged enough to have a script for HCG and Nolva is readily available. So I think that Nolva can have a use in HRT, although there are other options, also even at HRT doses some people are susceptible to gyno. As far as using 50mgs/5days of Test Cyp, this should be enough to bring your Test levels up to the mid normal range. Even if 30% of it is an oil suspension, that's still 7mgs a day and more then most AndroGel users are getting at 5mgs a day. I say if that is what is on the table for you from your Doc, take it for a couple of weeks and have your blood work done. If it isn't enough you can always request an increase.