I am a 2+3 hybrid, although one could argue, that my (5+1) trainees are not "big time" because of limited potential. But i think they are all very good (57-61 Skill10).
Still i got decent win ratio (10:4) and i will make about 105k this week. Arena will be 6318 / 555 / 138 / 13 after the current expansion.
I most likely won't promote this season, but my trainees develop very nicely, and i'm gonna start with a great arena next season.