[Hondaracer]

i find balls hard to hit bigger muscle groups though, but yea they are key in accupressure on those ligaments that tie your glutes together

what ive recently been doing which my trainer recommened is that when using a foam roller dont just go up and down the muscles but stop on a area and then work it side to side, ie twist your glutes/calves on the roller instead of up and down, works them in a different way and usually loosens them up really well