His stamina has gone 61, 66, 69, 70... it will probably max out at 71 or 72
His vR has gone 50, 57, 63, 65... probably max out at 68 or 69
His 2nd pitch has gone 50, 53, 55, 55... probably max out at 56 or 57
His 3rd pitch has gone 58, 65, 71, 73... probably max out at 76 or 77
Best thing I ever did was put Advanced Scouting at 0. I think you get a much more realistic picture of a player's potential by looking at their growth curve rather than projections which players almost never hit.