What are you doing to those poor Shure A53Ms? Whatever it is, I hope it's not too much like the way condoms are mainly used.
I have some (Shure shock mounts, that is--not condoms) that I've used for 20+ years without damage--never thought of them as fragile before.
--best regards
P.S.: I have to say, I can't see how the shock mount in the picture would give more than a token amount of isolation from vibrations.