Imitator is giving some goos advice as well as Jeffman and Dawninthemorning.

The collectors will often ask for more than 60cc or 2 ounces which is what a QF bottle is but that is because they try to scare people and they know if they ask for the bare minimum, they might not get it. This is not speculation but from what I have learned from collectors. Give them 60 cc's and if they try to give you crap say that is all you could produce and "see if that is enough." They can't reject you for 60 cc's.

Do the practice runs as you can use many spots on the body to transport and keep the QF warm.

It isn't the drug testing place that decides if you are observed or not, it is the guidelines everyone (collectors) must follow.