Sadly, they’re not all created equal. I went through a few bags of having to pry them apart AFTER soaking before I gave up and went to pellets. I just couldn’t get the nice flaky ones that fell apart in 10 - 20 minutes anymore* At least I feed them just for nutrition and supplement carrier as my horse has 24/7 access to hay/pasture.
*I think there was a problem with customer service with the premium brand and it disappeared for a while.