Probability of a flannery shape of 4522/45(31)/45(04) is about 2%.
Probability I have a Flannery hand is about 0.68%.
Probability someone at the table has a Flannery hand is about 2.72%.
All of the above is very rough, certainly shape and hcp are not totally independent, and it is possible for two people to have Flannery hands on the same deal, but it should be in the ballpark.
Seems like USBF must be conspiring to NOT give us Flannery hands if its only 6 of 600 deals! (joking)
I guess we all better dust off Flannery, because there's going to be a cluster of em in the next few months!