Help With 2024 Flag Coil Stamps

I have some 2024 USPS flag coil stamps that seem to have a perf of 11. None of the Scott # variations, 5871-5882, reference that perf. I bought them on ebay, so they could be a fake, but it doesn't seem so to me. Does anyone know if there is some variation that would explain this? Thanks.

Scott #5875-5878 are supposedly serpentine die cut 11.25 vertically. (I believe the catalogs are sometimes rounding this up to 11.5 vertically.) On my gauge, these seem closer to 11 than 11.25.

Upon close examination (perhaps under magnification), Scott #5875-5878 also have micro-bridges along the top edge, bottom edge, or both. The micro-bridges enable these to be sold in sticks (multiple connected rolls).

Scott #5875-5878 were printed by BCA.

see: https://goscf.com/t/80407&whichpage=7 , 5th post down.

Here is a copy of one image used in the referenced listing:

I neglected to finish my comments of yesterday...

Personally, upon seeing any online sales of modern stamps, I initially assume it is counterfeit unless at USPS.com.

https://www.uspis.gov/news/scam-art...rfeit-stamps