I have ended collecting modern canadian stamps in 2012...
in my mind, it was getting close to some kind of a racket

with to many kind of shapes as describe in the Unitrade catalogue : gutter strip of 4, starter strip of 4, en strip of 4, die cut to shape from Quaterly Pack, souvenir sheet with inscription/ without inscription, different die cut patterns, straight cut at start, wavy die cut at start....
I am not enough an addict to purchase/ get the "entire set". It's obvious that
Canada Post creates all these "different shapes" hoping we will buy them all...they need money !

I rather like to improve the quality of my "old ones" like the Admiral, Large and Small Queens issues...