*First injection of primobolan would be 500mg - this would give peak blood levels from the first day of the injection rather than waiting till week 5. This means that 12 weeks is unnecessary.
*First injection of Prop is 200mg - this again will give you peak blood levels from the first day of the cycle making each day as productive as it can possibly be.
If you didn't frontload you would need to wait upto 3 weeks for the levels to reach that point.
When i frontload prop i notice changes in the physique in the first week