Fast trainer gaining per rest pack:
0-20 20-40 40-60 60-80 80-100 100-120 120-140 140-160 160-180
---------6------5.5---5.25----4.25-----3.25------2------1-------1-----
if drill contains only grey or white attributes then gaining is the same
if contains mix attributes the gaining is 2 to 1 favorite the white attributes.