I am new to this forum and while there are many useful postings I am struck by the number of advices based on "I watch internationals". Internationals are not always playing by the rules. It is their job to push the boundaries. There are therefore usually two questions: is it a fauilt according to the laws of badminton and is it a law that internationals adhere to. The rule that covers the scenerio is 9.1.1: "neither side shall cause undue delay to the delivery of the service once the server and the receiver are ready for the service." Assuming that the server has not caused undue delay and the reciver has give an indication that he is ready to receive, resetting by the receiver has got to cause a delay and is therefore a fault. I think that you will find that most internationals do is to hold their hands up to positively indicate that they are not ready to receive. They can therefore take time to set as they wish (again subject to the undue delay rule). Once they put their hands down, they should not reset.