Discovered a neat trick

[Couchlockd]

Also note when using multiple compounds, it's best to create positive pressure in the vial instead of a vacuum cuz I've had testosterone syringes damn near empty themselves in the masterone vials due to the negative air pressure in the masterone vial

[guitarzan]

Also note when using multiple compounds, it's best to create positive pressure in the vial instead of a vacuum cuz I've had testosterone syringes damn near empty themselves in the masterone vials due to the negative air pressure in the masterone vial

Yes, I've had that happen too!