Be very careful with microscale, as MOST of their CN sets are WRONG! Some that come to mind are:
87-234 - asst'd boxcars and caboose - ok for numbers, but no data/weights other than one set for a 50' box, and a slabside hopper. comes with white red and blue graphics...blue graphics? CN never had blue, shoulda been black!!
87-567, 568, 746, 939 & 641 - this is where Microscale COMPLETELY dropped the ball. These sets used to be the benchmark for the post 1961 diesel scheme, but some clown called Microscale and told them the grey was wrong, but the grey was in fact PERFECT and should have been left alone! So since about 10 years ago, the sets have grey/white graphics, but they should be darker CN Grey #17!!! An Epic Failure! They HAD it right and blew it! You can still find old sets, or better yet use Accucals or CDS.
87-849 - noodle logos too wide, all of them
MC-4227 - completely wrong, noodle logo has too sharp bends, numbers are too tall...not much else on the set other than that. Go CDS or Sylvan if possible.
I use Herald King, CDS, Accucals, Highball Graphics and older #17 grey Microscale...I've been disenchanted with microscale of late, like they don't even care anymore. Don't even get me started on their CP or DT&I sets...