Wiped Cam Lobe Theory - Imput Wanted:

For a long while I've been reading about wiped cam lobes, and have been wondering if we can establish a trend in the number of wiped lobes compared to whether the connecting rod had a functioning squirt hole.

The new roller small blocks don't come with the Oil squirt hole in the connecting rod, and when ordering new bearings for older motors, I had noticed that some sets of new bearing shells didn't come with the notch nec to supply oil to the hole, and machined the nec hole myself.

It was my belief that the "squirt" of oil was to lube the cyl wall, but I can't help wonder if residual/partial spray lubed the cam lobes, specially since the squirt hole seemed to disappeared with the advent of the roller lifters, and cam lobe failure seems to have increased.

Theory or ?

If you wiped a lobe, do you know if the rod bearing had a functioning squirt hole.?

Thanks for your time.