ehobby ships by Hong Kong Post Service or EMS if you upgrade the service. Both has tracking numbers if i recall. Both are the best ways to avoid custom taxes.
Avoid UPS At all cost. AirsoftGI always use that stupid service. My first time was a 21$ USD value package, ups had to charge me 20$ CAD taxe because item package was over 20$ CAD converted value ... fuck ups. They steal your money.