Yes. I did a little experimenting last night and there is a noticeable buzz/change in pitch as the vibrablocks are moved down towards the limb pockets.
That's why I asked this question !! I didn't feel like people would be making the comparison's they are ......if all the Liberty's felt like the one I shot.....the way it was set up ! Figured that something had to be up !! Thanks for clearing it up !!