Roll prep issues

[Wildcowgrl25]

I am trying to roll prep this mare http://www.virtualhorseranch.com/viewho ... se=2048192 The owner want the strength highest and intell lowest. When I am trying to raise strength only I use driving but it is raising the other stats as well same as if I use polo or speed laps to raise speed it is also raising the other stats. I haven't had issues like this with any other horses I have roll prepped except for the last two TB's I have done. Does anyone have any info that may help me or am I doing something wrong? I am getting kinda frustrated

[Alabama]

Driving shouldn't raise anything else unless you have some of the random bonuses. Make sure your diet is at 100.

[Wildcowgrl25]

Diet is at 100% and these are the bonuses I have
Player Bonuses:
Sporty Sorts
Longevity
Twice is Thrice Better
Bountiful Broods
Fruitful and Fertile
Genetic Genous
Tenacious Trainer
Better Breeder
Super Studs
Rolling Rodeo

It hasn't done this with any other horses I haved roll prepped, just the TB's

[Alabama]

Sporty Sort: Sport horses gain in an additional random actual stat each time they train.

[Wildcowgrl25]

Thank you I will make sure I prep those at another ranch