The Santa Barbara-San Valentino combo is rather suitable for a something like 130-140 km mountain stage, and the Mortirolo - Bormio stage should rather have been a tappone. Otherwise the mountain stages seems fairly good. Add the sterrato stage, and we're in for one of the best GC routes the later years.I worry that the Aosta stage is too similar to the Finestre stage and anyone who wants to try something will just wait until the finestre and an intresting combo of climbs will be wasted. Also San Valentino looks very similar to grand colombier which isn't usually the best climb for a summit finish, hopefully the difficult stage and santa barbara as a penultimate climb might make it more interesting. I would prefer san valentino from avio before a finish up La polsa which would probably be paid for by the same town so definitely doable