If handshock affects accuracy, why don't we see more parallel limb bows being used for target venues by the guys that make their living by shooting high scores?

Before anyone says it's what they are paid to use......think again. A pro can shoot any bow in a manufacturers lineup, yet consistenly they choose to shoot bows without parallel limbs that produce more handshock. Look on the pro line in any spots oriented venue, or even on the 3D course.......the big boys are shooting bows that produce more handshock.
I think its over rated personally. For a target bow, it's almost a draw back in my opinion, because the traits in a bow that produces low amounts of handshock also make is difficult to balance properly with target accessories. Aside from this,I like somefeedback on what I'm doing with shot execution, and handshock provides me with this. With a pure hunting bow,lack of handshock isnice I guess, but honestly it's nearly at the bottom of the list of criteria I look at when selecting something.
Just MHO.