Using Bidules in sparkling wine, does it help with leaks?

Hey all,

So a while ago I made a post about leaking sparkling meads, and I seem to be having mixed luck with recent batches, roughly 20-40% leak and need to be either re-sealed or recapped.

It's getting rather annoying and I'm losing a fair bit of the liquid in the recapping process...

So, I've seen alot of places selling bidules, I figured they were not that big of a deal as I imagined most of the plug would be ejected in the disgorgment process, but after seeing how they sit in the bottle, I thought this may help with my leak issue once pressure begins to build within the bottle.

Has anyone used these before and do they help prevent leaking?