Surprisingly, "NO". I'm not positive, but I think that all Reformed churches, and most churches who tolerate Reformed views (like mine) do not require a water baptism here. We (SBC churches) require a believer's baptism to become a member, but not to partake of the Supper. Anyone who professes to God [honor system] that he is a true believer is welcome to take the Supper. We know there will be false believers who "get through", but there is no practical way we see of weeding them out. :)
"In extremis" was a term used in my Protestant growing up household so I just figgered ... The desire for economy of words leads to jargon leads to confusion.
That's cool. I think it is one of those things I "should have known", so it was my fault. I must have been thinking about skirts that day. It's happened. (I mean, a long time ago). LOL!
Likewise.