i guess in the beginning you wind up hassling your source by constant emails. Once he comes through and you receive your gear, you develop a sense of trust. Next time you won't be as worried about getting cheated and will see a week without notice as nothing. When a more than 2 weeks passes without notice, thats when you have to worry, unless you're dealing with international during christmas time. I hear that it sometimes takes up to 3 weeks for ETA.