I buy everything from the U.S. warehouse too. I don't buy very much of anything from HK and other then a roll of covering I haven't ordered from them in about two years. Then it was just items for my electric plane. The prices can't be beat but there is no customer service and shipping will kill you. We have a group of guys here that ordered a lot from them so everyone got together and placed one big order.
The covering is usually in stock here state side and shipping is cheap plus it is in your hands in about three days.