Just to clarify, your 2 initial proposals in reducing courier fee are (1) reduce to USD3-4/job (per device), (2) reduce to USD10 for 1 trip (regardless of devices). Your final proposed is (1) to reduce to USD3-4/job (per device), by changing the ASP to handle courier support.
Hence with the change, can you kindly advice how much saving we can expect, i.e. from USD2k-3k/month to USD3-4/job (per device).