Just for the record, he was the one who gave misgivings about the Blumenkrantz book
He said he was once in the supermarket and saw some poor woman ahead of him . She had a bunch of Peasach stuff that included some food and Paper Towels. She had read the the Blumenkrantz books said not to certain paper towels because of possible kitniyot on the last towel. So she got rid of the bounty and got a more expensive brand of paper towel that did not have the corn starch (Or whatever it was) and also put aside some food because she did not have enough money for both the more expensive paper towels and the food