Have crossed checked schedules last year and actual ops and conclude the following:
*EDI from 37 weekly to 27 weekly.
EDI operated average of 24-27 weekly last winter.
*GLA from 30 weekly to 26 weekly
GLA operated average of 25 weekly last winter.
*ABZ reducing from 11 weekly to 10 weekly.
My info says daily only before increasing to 11 weekly in April 17.
BRS looks about right while NCL is as well.
The 30/37 weekly are early/late summer periods frequency and not winter ones.