A person I know who works in the tobacco retail industry told me Canada doesn't charge duty on whole leaf tobacco imports because it's considered a raw product and not for retail consumption. I haven't tried importing whole leaf yet but that may be in my future. I don't have a shredder but I'm pretty good with a cleaver. Could be fun trying to slice a shag cut.
Or as
@Ahi Ka says:
Yes you are correct about whole leaf tobacco not being a “tobacco product” and not liable for excise tax. I think there is still a small tax you will pay for an agricultural import, something like $30 a box - I don’t remember if this is per kilo or per 10 kilos.
I suggest you both check out the fairtradetobacco.com forums, as there is a lot of discussion about how to order whole leaf from Canada.
As someone who lives in a country where whole leaf can no longer be imported, I’d say stock up on it while you can, and put it away to age. Also, a knife works better than a shredder when prepping for a pipe