I will say that you used to be able to find on almost every section website concerning ratings that double bagel match scores were thrown out of the dynamic rating. Almost like it was part of a formal USTA statement.
However, now the references are increasing harder to find. There is at least one section still with a reference to double bagel scores but it may not be an updated site.
We have had a couple folks claiming inside knowledge on here saying that they used to not count and now they do. It is hard to know what to believe, but if I had to wager I would put my money on the belief that the USTA now incorporates double bagels into our dynamic ratings.
"You should be playing linebacker, not singles."