keep in mind that most UGL caber has a short shelf life , so if you've kept it on hand for quite some time it may be no good when you actually need it. if using research chems Prami is a better choice Imo then caber.
I've ran a gram of nandrolone without caber . it all depends on how prolactin sensitive you are. however always have it on hand or be proactive and take a low dose anyways.
if you ever get to the point where you get progesterone induced gyno and shot libido , you were pretty fucked up for a long time before those things showed up (those are the last things in a long series of negative events to show up , and again why some people choose to run caber either way)