Day 9

Traning time: 2d 16h
Maximum planets: 4
income/month: 101,035,335 ISK

 Alexia the SilverWing

Traning time: 2d 16h
Maximum planets: 4
income/month: 127,750,589 ISK

 Space Girl Stella

Traning time: 2d 16h
Maximum planets: 4
income/month: 141,838,675 ISK

 The Last FairyTale

Traning time 5th planet: 3d 14h
Traning time 6th planet: 20d 5h

300+ mil/month for so little effort. Didn't even take that long. After 8 days of traning I'm free to train any other skill, PVP, PVE, Mining, Exploration.