yes as long as it is double vaccum sealed and take particular care in that no
traces or resedue are not out off the seal.
you could be suprised how compact and small you can make the product, and you can always bring it back to life with a good grinder.
off course this is with amounts no bigger than 28gms, although i no people
who recieve larger quantities.
as for the dogs it seems to work but unless i can get hold of a sniffer dog,
(unlikely) i cant say for definate.
although i agree with you caution is always the best policy, but after a few
results you don`t go back to local commercial weed.
hope that helps
take it eaaasy