That's probably what we will do. Rightly or wrongly, the new tool will probably accelerate it because I'm sure we'll be getting support queries from needlessly

That's probably what we will do. Rightly or wrongly, the new tool will probably accelerate it because I'm sure we'll be getting support queries from needlessly worried customers. Sometimes that kind of effort is good, but in this case I have sad feelings about that result, because the impetus is misguided. I totally predict that any future EDNS rev will not use a trial-and-fallback kind of negotiation, making all of this work pointless.