Camshaft wear pattern

[SAJ]

I pulled the motor apart on a members car for a knock and found the centre main cap had lost most of the babbit, due to poor or no tinning. But I also noticed a circular wear pattern on all the cam flanks. See pic no 1. Is this pattern normal or indicative of too small a follow foot for the cam grind. Grind is said to be 100E (English ford 10) and follower foot diameter is 1.00 inch. I know no more about the cam, neither does the owner, though he delivered the cam to the re-grinder about 15000 miles ago
Many Model A's here use this "100E grind". And many use the 1 inch foot.
I saw the same pattern on my wife's Tudor, so I put in a new IB330 Stipe cam and 1.125 inch single lock followers. Was I being too careful?[/B]
Crank is coming out tomorrow to see what the babbit in the block looks like.
Front and rear caps look OK, except the rear one has an extra groove I would like to fill in to retain pressure in the cap. And there are small shiny patches all over the babbit which I am not sure about.
As in a previous thread, before I took the engine out I measured deflection in the bearings with a DTI and hydraulic jack and got 0.004 in the centre and 0.0015 in the rear and .004 end float.
I will see if Plastigauge agrees tomorrow on front and rear.
There are no shims present anywhere.
I apologise for the poor focus on the babbits. I will fix this tomorrow.
SAJ in NZ