I've submitted a pair of pull requests, to do a thorough cleanup of TCH/BC 16, and more limited revisions to intersecting routes.
TCH/BC 16 adds a few points (one from my hand-held GPS receiver) to reduce or eliminate distance errors, trim unneeded shaping points, and recenter some waypoints. Also, after I made the pull request, I noticed that waypoint BC62 (decommissioned route) needs to be changed to ChuRd, which I'll take care of later. The new files aren't much slimmer than the old ones, which I had redone a few years ago. That suggests not a whole lot of potential point reductions in the similar TCH/BC 1 route files, though they could use another pass.
BC 27 and BC 118 each have one new point from my GPS receiver (TacCreRd for BC 118, FishLakeFSR for BC 27). For BC 118, GraMar was moved to end of pavement, also using GPS coordinates. I added four new points for BC 113, most from my GPS receiver: KluLakeRS, LavaLakePA, BelFalTr, and AnlRd (the last is the access road to Gitwinksihlkw village).
For BC 37, in addition to resycnhing its concurrence with BC 16, the south end in Kitmat was truncated to NalBlvd (per official route description), and BC113 => NassFSR now that we've determined BC 113 doesn't intersect BC 37. Still room for other changes elsewhere on the route.
For BC 97, I did a thorough cleanup between BC 26 and BC 16, adding new points to address distance errors. I had taken GPS coordinates along that stretch last summer for that purpose, but it turns out OSM/Mapnik improved its mapping since then, so I used OSM/Mapnik coordinates instead. The improved mapping may help address distance errors elsewhere on the route, which I traveled but didn't gather GPS coordinates, so I didn't look at those. Also, BC97A_Geo => OldCarHwy (that BC 97A was decommissioned, and I saw no BC 97A signage at that intersection), and PacAve (no intersection) replaced with ConWay.
BC 5 and BC 35 were edited only to resynch them with TCH/BC 16.
UPDATE: All the above changes are now in the HB, except the relabel of the BC62 point on TCH/BC 16, which I'l take care of next week.