RDA Anyone have experience with Sig S?

[Tyfghter]

I am working on building a back up, and I found an old sigelei Sig S I first tried dripping with. It seems pretty sturdy, but after using my Mutation X as my primary, I have the cap design on the Sig S and it doenst have nearly enough air flow. While looking around the internet, I couldn't find any top caps for the Sig until I came across this one:

VLS CREST CAP Replaceable AFC Atomizer Top Cap Authentic – Vapor Room 909


does this mean that any top cap fitted for these rda's should fit my Sig S?
IGO-W5
Oreico Storm
Spirit

thanks for any input!