If the silver switches on your existing board aren’t explicitly “silent” they won’t have those little pads. I have a post that shows a few examples of silent stems as well as the resting position thing I mentioned.
Another possible option for silents if you end up with / already have some that aren’t - Gazzew sells silent stems by themselves, and his are the most quiet - an image of his silent linear (returning to market soon) is in that post I mentioned.
As for the price it’s hard for me to say as I haven’t seen them in person or used them myself. If a switch gives you what you want, it’s worth it - but if you’re looking for a good value I don’t know that I’d take the plunge not knowing. Is it possible to get samples / purchase a small number of them for experimenting? That’s usually do with switches I’m curious about.