SB Cam Thrust Plate P5249637 no longer made? Only tensioner now?

IIRC the cupped washer flexes/preloads and provides a constant tension on the cam to prevent loosening. The Milodon torrington bearing is correctly positioned as the interior side of the cam is pressure lubed while the outside plate (under the cam cog) is sling lubed and there isnt chain sling from a gear drive.
If the thrust direction of the cam is against the plate, then the Torrington is merely along for the ride. To put a Torrington on the camshaft side would require completely redesigning the cam to accommodate the bearing. Because most serious race builds restrict oil flow to the cam bearings to increase the volume and pressure to the main and rod bearing, the flow coming out of the front cam bearing to the thrust plate is insufficient. That is why I added a trough to my plate to pressure feed the plate and minimize the wear. Three rotating gears under the timing cover will sling as much oil as any chain imho.