Nice challenging route. Did it with my wife and toddler on my back (only the kid :-).
Unfortunately it started to hail en thunder at 3/4 en route which made us quite anxious.
Conclusion: not a route to do with a precious load on your back.
on a 4-days-traverse through the Bernina Group with the alpine club of Rommelshausen this was (after Piz Morteratsh and before Piz Palue) the relaxing day: Walking from Boval hut to Diavolezza hut over Morteratsch glacier and hiking on Munt Pers in the afternoon. Fine weather and great views!