The block is machined flat on top except for a cross- cut to tightly locate the front trigger guard screw boss. By locking it tight as well as the sear lugs to butt socket area at the rear, the action cannot move at all. I did end up a tiny bit thin at the rear end underneath, but added a little wedge to the trigger guard to make up for it. The t/guard locks it all together as one piece.
The bedding compound (pic shows the first type, a two part epoxy, which failed) is just to give support under the receiver ring and barrel knox. Barrel fully floated forward of the knox. The foreend attaches with dome headed capscrews into the aluminium, It doesn't touch the rifle itself.