Proportion Hacks
These "hacks" present both advantages and disadvantages. Use wisely.
Thebutlah's hip roll hack
Make your chest longer in order to isolate your hips and do hip rolls.
La Magie's hips width hack
Make your hips width in the SlimeVR body proportions really small (around 5).
This makes tracking feel more responsive for certain people, at the cost of precision.