Ok, so probably a silly question. I have been reading more and more about using small dose HCG while on cycle. I am only 4 weeks into running test and have decided to give this a shot - see what happens. This is my first time using HCG and first time attempting sub-q injections. I'll be dosing 500-750iu per pin. Since it will be sub-q it seems to be a good idea to keep the volume small. If I have a 5,000iu vial would there be any issue diluting it to 2.5 ml? That would make a 500iu dose only 25 units on a slin pin. Mostly I see people diluting with 5ml but I can't find a reason why that is the standard. I just don't know if there is a minimum strength dilution that is recommended. Thanks fellas!