Thanks Jeepman, your info fills in some gaps atleast. Just to clarify things a bit, the roundal style I’m interested in is the pure roundal, rather than the star-and-bar lookalike used by BPF.

Part of the reason I was surprised at the use of white in the normal FAA roundal was that I had always thought it was introduced on the BPF version to make it resemble the star-and-bar more closely.

What’s the number for the roundal police? 666?? 😀