I've actually had Lipos take 6 weeks to get here (Australia), having said that the norm for me has been 4 weeks. The tracking was of no use at all, so don't panic just yet. My order 21 was for 2 aircraft, esc's, motors etc. Order 22 was for Lipos mainly. I did it in 2 orders because I didn't want the models delayed.
Looks its a pain but its a massive saving, hence why HK gets most of our business with the exception of some very specific gear.