As mentioned at the beginning, this long distance requires good research with regard to the route. In this high alpine terrain, the safety aspect plays an important role.
Therefore you should know where you are and at what time you will arrive at the next waypoint.
This allows you to calculate when you are where, breaks are well divided and if an accident should happen, the emergency services can be provided with specific information. Which has a faster help as a result.
Extra tip time to start:
Start at 8.30 a.m. in Lech Rüffikopf, no later than 4.30 p.m. at Valluga 1.