I have used it through entire cycle at 500 twice a week than the 2 weeks b4 i start pct i run 500 everyday and stop at pct. it is the smoothest transition i have ever had coming off. felt good the entire way The only way for me to go. peace
I've read clinical studies HCG has first spike within hours of injecting, then has a second spike 3-4th day after injecting, then pretty much dies off. That is why most everyone injects twice per week.
I have no idea, other than to increase dosage. Guys I know that get aggressive with HCG at end of cycle still only do it MWF, but they do 1500ui per shot. Me personally I always try to keep shots to as minimum as possible, so I shoot twice a week.
I just read that article you linked to. It says shoot once every 5 days, not once every week. That makes sense to me, as again the drug is clinically proven to have second kick the fourth day. So guess it's a matter of preference.