1. HCG is injected subcutaneously (excuse my spelling and grammar). So 45 degree angle in the fat under your skin about 5 - 8 cm to the right or left of your bellybutton.
2. This has been a hot topic lately on the forum. Some say yes, others say no.
3. Only reason why you wait 15 days before PCT is because that's how long you have to wait for it to clear. Prop is only 5 days.
If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.
Bruce Lee