Type Improvement?

[ZachsRabbits]

I love my woolies but only complaint about them is the line I am using is very undercut in the hindquarters. That is her herds main fault. How would I breed that out? I would outcross correct? I thought about using fuzzy dwarfs though.
Thoughts/Opinions.

 

[powellanimals]

Are there other lines available that don't have that problem that you can breed to? That would be a lot easier than outcross to another breed.