Well I think I mentioned it in the other thread but it's been all over the place. For example:
Oct. 29 6:10 am
Item processed
Mississauga, ON
Oct. 28 9:49 pm
Item processed
Mississauga, ON
Oct. 14 2:04 am
Item processed
Mississauga, ON
Oct. 13 3:47 pm
Item processed
Mississauga, ON
5:22 am
Item processed
Mississauga, ON
Oct. 9 6:27 pm
Item processed
Mississauga, ON
11:09 am
Item has been presented to Canada Border Services Agency for customs review.
Mississauga, ON
11:09 am
Item has arrived in Canada and will be presented for review
Mississauga, ON

That was mailed on September 21st.

Friday, 25 September
2:14 PM
Arrival Scan
Wednesday, 23 September
12:54 AM
Departure Scan
Friday, 18 September

This is a September 16th order from Bezos coming China Post.

I have another from September 23rd coming China Post registered air and it hasn't arrived. So I guess if you can avoid China Post and Canada Post you'll be fine.