Stiff Hitting Cue

How much flex the shaft of the cue has. I prefer a stiff cue, for me I get better feedback, and to me more energy transfer. There are people on the other side of the fence though that feel a whippy shaft is better.
It all boils down to what feels best, and works best for you.
Chuck

I equate stiff hitting cue with stiff shafts and stiff butts ( usually dual or compound taper ).