lasinfo64 -v "M:\2023.03.16-kern-slides\lastools-test\canepk-colorized-test.las" -repair_bb &
lasground_new64 -vv -i "M:\2023.03.16-kern-slides\lastools-test\canepk-colorized-test.las"-o "D:\canepk-colorized-test_sm_lasground.laz" -step 1 &
blast2dem -v -i "M:\2023.03.16-kern-slides\lastools-test\canepk-colorized-test_sm_lasground.laz" -o "M:\2023.03.16-kern-slides\lastools-test\canepk-colorized-test_sm_lasground.tif" -step 0.05 -kill 0.5 -utm 11S -keep_class 2   


The lidar output from resepi needed have its bounding box repaired, otherwise blast2dem would never output.

lasinfo (repairing the bounding box) took (unreported)
lasground_new64 took ~4000 seconds total
blast2dem took 208 seconds at step 0.05 (5cm resolution)