Aurios vs Stillpoints, any experience?

I have a set of Aurios 1.1 under the feet of my Sota Star Sapphire turntable, and have been very happy with the results.

Recently I had the opportunity to audition a set of the Stillpoints. I am concerned about the fact that there is unlimited travel with the Stillpoints so theoretically it is possible for a piece of electronics to roll off of the bearings. I wanted to use the Stillpoints under the TT but because of the amount of motion involved with the TT I am worried about the TT falling. Between opening and closing the dustcover, swinging the arm, and removing LPs I am worried about possible damage.

I installed the Stillpoints under my amp and it has not moved at all, but the amp is close to the floor, and is moved much less than the turntable.

Does anyone have any experience with these bearings and how did the compare to one another??? Is it possible for equipment to roll off of or around a level shelf??? Are these valid concerns???