1. Start by creating a Super Heavyweight CAW.
2. Play through season mode and earn until enough exp to max out strength or durability or both.
3. Go to Create mode and make a copy of your CAW.
4. Edit the profile of the copied CAW and change the weight limit to DIVA. You'll recieve a notification saying CAW attribute points will be lost. Continue.

By doing this the CAW's lost Attribute points will be converted back to EXP Points, and you can distribute it to other CAWs. Repeat steps 3-4 until you max out all your stats.