That solves at least one mystery for me, Cloudee: Student pilots (at least some of them) are being required to interpret LL GPWT charts. I feel for them.
How on Earth do they work out the grids to be used for a flight? My EFB now (mercifully) plots the plan on the electronic copy of the GPWT and does some ‘automatic’ calculations, but .... jeeez ... I’d hate to be doing it the ‘old fashioned way’ on these ‘new’ charts.