[Barry_R]

If you don't believe in OE development you can pop on over the "evilbay" and take a look at NASCAR take-outs. They have vacuum & dry sumps and still seem to leave the pin out of the groove when feasible.

The punched groove is a drag race specific deal that has migrated into the street world in order to accommodate the popular stroker crank & rod combinations. That said, there are eight hundred gazillion cars running around that way, so it obviously can work fine - just not my preference.