That's so cool, so if you're still on 1.19 you can use the compact update skipping (tutorial e.g. https://youtu.be/-VTuFla1cTs originally by NicNac I believe) to create the bugged shulker and assuming it survives the update have a super convenient way for update surpression in 1.20.

You could even move the surpresser around by repeating it, I mean the setup really isn't that big