I've experimented with the new opana 30s on 2 separate occasions. I've become a pro at micro freeze with the OPs so much that it's my drug of choice. I thought i would be able to crack these no problem. It took me and my gf 1 hour to grind up 3 pills with 2 ped eggs and both of us grinding.
The pills are like plastic. My fingers had many a blister and when they got small enough I picked them apart with tweezers. After microwaving and freezing sure enough I had the tasty opana taste in the back of my throat but will I do it again - no. These are the worst, impossible even to chew up. If you thought prepping OP was bad do not try this.