Pitch stability, as in restoring pitch disturbances, is really established by how big and far back the horizontal tail is. At least the "safe" aspect of pitch stability is established that way. The CG is a major player, but as long as it's kept within it's safe range, it really only tunes how fast the designed in pitch stability restores the pitch axis. And it's safe range is established by how big and far back the tail is. And that doesn't change.

There are really two aspects of this pitch stability versus CG issue. One is how effectively and quickly the tail restores your established pitch. The CG tunes that. The other part of the issue is how the CG movement affects the effectiveness of the elevator.

People often think that moving the CG forward or backward affects the safety and sensitivity of the airplane. It does that only in that it requires adjusting the elevator throw to keep up with it's change in effectiveness. For us to continue to safely steer the sucker, we need to keep the response to the stick movement within bounds for what we've learned to handle.

Sensitive is what we feel in the stick. And if we change the CG after becoming accustomed to the stick response before the CG change, we fly unsafely after the CG change if we don't understand what's about to happen. The airplane won't be less safe, but we will be. Truth is, the airplane will be more efficient. There will be less induced drag for the same change in pitch. The elevator moves less to get the same AOA change. Less drag produced. Less speed lost. But not less safe as far as the airplane is concerned. Unfortunately, we often don't know to move the stick less. And when we move it the expected amount and the airplane SUDDENLY moves more, we think it's become less safe. We've become less safe. It hasn't. So adjust the elevator throw and you've got your comfort back. And the airplane is just as safe as always AND a tiny bit more efficient.