Stringbed deflection

Ball impact causes the stringbed to stretch. Softer strings stretch (deflect) more than stiff strings. This usually goes hand-in-hand with longer dwell times and lower impact forces.

Some people correlate large stringbed deflection with control, saying the longer the strings are in contact with the ball, the more you can control it.

Others say the increased angles of deflection and the larger distance the racquet swings through during a longer dwell result in less control.

And still others say more deflection means more power because energy isn't lost in deforming the ball.