Pharmacy grade Actavis(formerly Watson) Test Cyp, often prescribed for TRT here in the USA, in the product insert in every box talks about the common occurrence of hormone falling out of solution. It also instructs how to quickly remedy it when it happens
As a member just mentioned it happens and is often seen when brewers keep super solvents out of their recipes. I'm working with a fantastic long time brewer who puts out Tren E @250mg/ml, Test Cyp @250mg/ml, a Test Cyp and Test E blend with a total of 400mg/ml and some others.
His clients are mostly vets who know what to expect. I don't mind seeing it here with as many new guys as we get coming through. You don't know til you know, you know?
With all the HPLC testing going on in the Community more and more accurately dosed gear is being produced. Used to be guys would advertise high mg/ml gear and we had to take their word that it was in there. I would avoid it even though there were times I'd want to grab some. Guys would talk about how smooth the gear was. No pip and no crashing and I was pretty sure I made the right decision.