Well I am pleased to announce that I DID it.
1) 19 yo DC start: Quality 60; end: Quality 65
2) 19 yo DC/DMC start: Quality 61; end: Quality 66
3) 18 yo MC start: Quality 63; end: Quality: 67 (almost there)
4) 20 yo ST start: Quality 59; end: Quality: 64
For my 19 yo DC/DMC I got him last sesaon as 18 yo and even added SA for Aerial Def
Cheers. They are being groomed for next season.