Hi Jim, Whenever I have an instrument that seems to get stuck in the USPS system, I call to file a claim.  They always get back to me and then magically the package starts moving again.  Sometimes they don't realize that the package is in the safe at an intermediate facility or at the destination.  It's a very unpredictable system in terms of delivery but I find it to be both the least expensive and easiest service to use.  For instruments over $5000, UPS requires that it be dropped off at