i have both a regular shadow and a canadian, i can say with a bit of polishing i have the trigger on my factory shadow (with factory hammer) almost as good if not better then the canadian (for me at least)
where the canadian wins is the barrel/slide/frame fit. these are hand fit from the factory and it shows. the canadian is in my opinion put together with the same tolerances as my previously owned sti 9mm major open pistols (custom built ones)
accuracy wise the canadian is more accurate then a regular shadow. i would shoot ppc style competitions with this one. at 15m's u can put 10 rounds in the same hole.
compared to the regular shadow can range from 1"-2" depending on ammo. but in ipsc for example i have no issue with this since were shooting on the move anyways (if all goes to plan lol)
in my opinion both are excellent pistols. it all depends on how much you want to spend.
i have to say the maple leaf grips look awsome tho