I see some ptc brotocols (pun on protocol) using both clinic and nolva together, is there an advantage to this?
Yes there is. Dr Scally has gotten into this quite a bit. It is very likely that the estrogen agonist and antagonist effects of clomid when combined with nolva used alongside it improve the impact on LH & FSH.
The combination seems to be superior than either one (clomid or nolva) on its own when it comes to restoring HPTA function more quickly and more effectively.