Not a good idea. packs coming from china get picked off all the time.
I'm very close to finishing up an order out of china for say 50g-100g.
I would be more worried that customs will think the powder is coke or heroin.
They will very quickly find out it's not with a simple chemical reaction or chemical analysis.
I went ahead and put one in before I finished reading this thread. If I lose money at least it's not in an excessive amount. If it comes through then alls well. What do you mean by chopped up shit? Bullshit product?
Steped on at best, just like coke my friend. ANy old white powder will do.
Unless you're buying by the kilo, don't count on getting anything higher then 25-30% real grade powders