three courses of cmu have been placed on top of the footings. this will facilitate accurate slab penetrations for plumbing and electrical chases. the builder, taz ezzat, recommended this. with this suggestion and many other considerations, he has not missed a beat.
i recently learned that cmu stands for concrete masonry units. i used to call them cinderblocks; why the name cinderblock did not persist in the building trade remains a mystery to me.