Yes and no. Honestly the testing was done on males using a replacement dose, and I know we advise using 500iu a day before serms, plus some fertility docs will inject the entire 5000iu at one time which is why hg stuff comes with a vial of sterile water instead of bacteriostatic water because it was intended for a 1 time use. But we are using it for a different reason. Basically 300iu increased T levels as much as higher doses, but I have used more on some heavy cycles. I just think that the average cycle doesn't need any more weekly because it will increase estro from lydeg's which aren't affected by an Aromatase inhibitor (AI) so you can negatively impact T to E ratio and have no way to manage it.
I've also used heavy cycles meaning over a gram of test, a gram of deca, mast, dbol, Anavar (var) and yes both orals at the same time, then switched over to tren after dropping deca, and didn't need more than 300 iu 3 x a week. In he above post I was speaking about his cycle specifically, but on heavier cycles, 250-300 eod or M/W/F should be plenty, I know it keeps mine full.
You should also be taking NAC and ALA, but NAC specifically while using hcg, honestly everyone should use NAC all year round whether you cycle or not, it will help prevent lydeg desensitization, basically NAC attaches to (setting I can't think of right now) possibly a free radical of some sort and essentially commits suicide to save the lydegs, plus it has very important impact on liver helping to remove toxins, heavy metals, and many other things. Look up the benefits of it. I take 1200mg on average a day, sometimes more, with ala, this won't mean you can take whatever you want and never worry about liver damage because once you have spots on the liver, there is no fixing it.
NAC also is used in hospitals for people who overdose on Tylenol. There are a lot of important things it can do and can be found relatively cheap in 600mg caps, so if not taking this, I would make sure it's part of everyday life.