Keepitlit: glad to see you missing the point yet again! When barcode said “I know of at least 2 over-runs by 146s at BHD (and they're designed for REAL short fields)” I could see no implication that BHD was a short field, merely a statement of what the 146 was designed for and another statement of historically what had happened at BHD (the Capital 146 and the JEA 146).
However, as far as R/W 17 at Aldergrove is concerned, it is about the same length as 22/04 at City, but 17 is not normally used with the wind 90 degrees across the runway at 30 knots. The runway surfaces at Aldergrove are also of considerably higher quality than at City; I know where I would rather take my chances on a dark, wet night.
Finally, while we’re on the subject of crosswinds, a question: do the bmi First Officers have the same crosswind limit as the Captains?