I've never heard this. With an inertia style action you would think it would be the exact opposite.
In fact the only time I've had problems with action not cycling properly was when I let a friend of mine shoot it. We were shooting trap loads and he weighs about 130 soaking wet. He never shot a gun before and the gun didn't cycle well for him when he didn't shoulder it properly. I didn't have any problems when I shot but I'm pretty solid (concrete wall)