Following variants started from cuttings from March to May that had performed exceptionally well for me after going into 1 gal pots are:
Branca
Blk Triana
Bebeberia
Domenico Swiss/It
Doce
Eve's Blk Cherry
It 395
Kathleen Black
LSU Purple
Preto
Takoma Violet
I water these plants with dilute MG at least once a week, sometimes twice. The cooler weather may have helped.