Re: Shisui MS
I think it only counts for the eye that Itachi had. I don't think anything was ever said about the eye Danzo got in his possession.
Danzo was able to reduce the time using senju DNA to several hours.
But this wouldn't make sense. You can calculate on it, but saying it was amplified from 10 years to 1 day, it would be 3650 times faster, and it's doubtful Kishi would have Senju DNA do that much to the jutsu.
So it's more likely that one of the MS abilities had a lot shorter time, before it could be used.
Also the difference on the 2 eyes is huge. The eye Itachi had, obviously had completely different abilities than the one Danzo had.