It actually is known, and it is replicatable. It's called fuse dupe and it's used in speedruns now. It's a really big timesave.

To my knowledge, the capture has to have something called Cframe to do that and I'm pretty sure Spark Pylons don't have it.

https://docs.google.com/spreadsheets/d/1jdH0U1N1lEyz-mKOxhIPD96Q78YuNFnkiEhUjLXa6jA/edit#gid=0 this?

I believe it's pinned in #min-coins in the Low% Discord Server