When I was taught to fly the mighty Bulldog by the RAF, one of the key things for flight planning was to add minute marks (at two minute intervals) on your route.
In addition we used to add fuel circles containing planned and minimum fuel levels and direction arrows at the beginning of each leg showing leg heading and altitude.
I think these would be great additions to the service.
I realise that this is quite belt and braces but it always allowed for very accurate flying and meant that all key info was on the map itself rather than having to refer to a separate pilot log. This would also improve the printable version of your map if the ipad has a wobble en route.
I've got a PDF of the RAF UAS navigation manual which explains all of the above. If anyone wants a copy let me know.
Thanks for a great product.