betn bride arm in 9 ball break

[SILVER__WOMBAT]

i was watching perfect pool with mike s and he said that the only time you should bend your bridge hand"at the elbow" is when breaking 9 ball...does anyone know what is does


edit:yea i know i cant spell, its late and idc

 

[Stones]

It helps your body to go forward into the break with a bent arm instead of upward with a straight arm, I imagine.