Hardcore, I don't know about that. On my slin pins, each notch/mark is 2 iu. Assuming your IGF is diluted to 1,000mcg per ml, then each iu on a 100iu slin pin is going to be equal to 10mcg. Which means each notch/line is equal to 20mcg so 4 lines is equal to 80mcg.
Glock, in your case, you may find it easier to work with if you do what I do, which is to dilute your IGF with another ml of BA, and use 30iu slin pins. That way instead of trying to get 50mcg's and somehow measure out 5 iu's on a standard slin pin, which is almost impossible, you're now measuring out 10 iu's on a much easier to use 30iu pin. Much easier to get it exact.
Water and your IGF will be different densities as you'll notice when you put them in and if you flip the syringe around, you'll see the 2 ingredients move around in blobs. Just make sure you inject so the igf goes in first and the water goes in the muscle last, thereby ensuring you haven't left any igf in the syringe or needle.
Good luck,
MaxRep
