What kind of HCG are you using? US pharama? Overseas pharma?
The reason I ask is the compound loses a bit of strength when exposed to higher temps, and in shipping it will be exposed to varying temps and could lose some strength. I use indian pharma and buy in winter to keep shipping temps low.
As far as dosing, I've been on TRT/blast & cruise for a couple years and have never been happy with 500 iu's / week.
I buy the 5,000 iu bottles and once a week inject 1,250 iu's. Main reason I only inject once per week is laziness. I do this on my T inject day just to keep it simple.
By all means this is not textbook, but I've been happy with the results.
Best of luck to you.