Hmm, only cloned two times ... I think perhaps you miscalculated or something. Otherwise pics with a card showing date and time as you cut them and the next day shwing roots would be cool. I'd be surprised if you got roots in 3-4 days honestly. I use clone machines ad its usually 5-7 days to start showing decent roots. Either way congrats on cloning success.
I just looked at your pics and I dont see any roots on those only a split stem. ......