On one of my recent sorties to the greenhouse I spotted this lying on the bench beside the plant it had leapt off; consequently, I have NO idea how long it took to reach this stage.
The Echeveria, having died in a recent, accidentally imposed drought, is out of the race.
Shrek's Lug-hole tree was in the lead, until now. It appears to have put its strength into the plantlet and withered away.
Crassula trying. Most succeed, but, apparently very slowly.