Importing weed of all drugs into a country with some of the strictest drugs laws on the planet just seems like a really bad fucking idea if you ask me, seriously you can source weed locally can you not? there must be some growers who sell half decent stuff. There is a thread on here re some guys who got hold of a drug detection dog and they ran all sorts of tests with different packaging techniques and one of the posts above is right, permeation will eventually happen no matter how many vac seal layers you use. If you do decide to give this a go you will want to make sure you have a totally safe drop address arrangement with no links to you or people who know you because if it goes bad I would not want to be on the receiving end of the Malaysian justice system.