Average stat gain by role

Do people have a sense of where a wolf's particular stat could end up based on their role? I'm planning to breed specific lines to specialize roles and my current goal is 300+ in the important stats. I'm wondering how to evaluate potential based on pup stats -- for example, if a pup is born with 120 strength, could it reach 300 by level 20 or with additional training? 

Also, do people know the average stat gain per scout? I have a wolf who reached 280 in wisdom at level 20 and I'm trying to decide if I should keep scouting her until she hits 300 or move onto leveling a new scout. There are currently no males with 300+ wisdom and I don't have any that could reach that who aren't related to her (unless one born at 97 could make it, but I'd have to level him), so I won't have an easy time finding a stud to keep up with her wisdom. ;)

Thanks! 

I looked through two of my scouts who have only rescouted in the glacier or rainforest. 

Glacier Scout: Gain 78 stats in 228 scouts. Very, very roughly, the experience she gained on each scout = 72.2*Level + 79.6 (but don't rely on this!). In total it took her 218 scouts to reach level 20. With leveling bonuses and scouting gains, she gained 192 in wisdom. 

Rainforest Scout: At level 19, but spent the first 6 or so level as a hunter. She gained 53 stats in 187. With leveling bonuses and scouting gains, her strength increased by 174. 

Both have biased leveling gains: glacier scout in wisdom/smarts like her mother and rainforest scout in strength/speed like her mother), which undoubtedly contributed. 

Haven't looked at hunters (need a faster system), but it seems like my 97 strength boy could make it to 300 if his leveling favors wisdom.