I am not saying you should get them or not since it will come down to a personal decision. There is conflicting information out there about the withdrawal period. I think labels are not always the most reliable source since most products are not tested on laying hens.So your saying not to use the Dienomite strips because they are not safe? I have had them on my list of things to get. So you wait 8 days after spraying your birds with Pyrethrin to collect eggs?
I prefer looking for scientific studies when it comes to food safety.
http://www.ncbi.nlm.nih.gov/pubmed/7343077