When injecting the water I still had a bunch of pressure. Doing 11000IU in one shot. I tried to draw out 11000IU of air from the HCG bottle to create a vacuum, but I heard a rush of air when pulling the needle out. So I don't think it worked. I watched another youtube video that stated the HCG bottle was already under a vacuum. So do I need to do this step? The Defy video says to.