Silencers

I'm going to need a new pair soon, and would like up-to-date info on experiences with various options. 

Ideally the replacements will reproduce the original twitter (see discussion here: https://www.nortonownersclub.org/node/10533).

My understanding is that the new AN offerings (e.g. https://andover-norton.co.uk/en/shop-details/23201/silencer-seamed-original-style-baffling-logo-single-unit-) will do this.

Can anyone confirm this?

Since both seamed and seamless versions are offered, which should I prefer? On the face of it the seamed versions might be more robust.