Metric Mechanic’s scraper is fastened to the main bearing caps. The way the scraper is cut and bent to catch oil is subtle enough that it probably isn’t capture well in the picture. It not only scrapes oil from the crank, but it also shelters most of the pan from the whirling hurricane, making it easier for the oil to drain forward into the sump.
MM’s baffle is integrated into their oil pan. The way it functions is similar to the TC Motorsports design, except that the MM baffle replaces the barrier to the chamber enclosing the oil level sensor. The MM barrier includes a trap door that allows oil to rapidly come out of the chamber towards the OP pickup.
Engines are most of MM’s business. They state categorically that they have never ever had an oil starvation related engine failure from one of their engines that was using their scraper and baffled pan. 