For the record (seems like OP has made a choice), I too really like Burris Signature rings. The plastic inserts, once tightened down, have never allowed a scope to move for me. And my scopes re-emerge from the gun with no marring, dents or any damage. I think the scope would fail in a "drop gun" situation before the grip on the rings would fail.
And then there is the benefit from the Burris rings that you can add a nearly infinite variety of tilt and angle to the scope. Just why they are not more popular eludes me......