Hmm...
When I do HCG I usually do 5000iu in a 3 week period...
I do 1000iu day one... then 500iu every 3 days, until the 18th day... that is roughly 3 weeks... then I will pop in the final 1000 on the last shot on day 21.
It works out well... but yeah, I can see how 10,000iu would be overkill.
C-ditty