I just ordered some gear ( kimono + patches) from an american retailer situated in California. I got this email on saturday morning: "Your order has been shipped via Usps ems service. You can expect your package in 5-10 working days." My question is how fast is USPS ems service? Is this cheap mail or express? Will it really take 5-10 days to get to me ( from California to Eastern Europe) like indicated or much more? I usually received the packages by fed ex in the past and it would take 3-4 days from the moment it was shipped. What can I expect this time?