Me too, curiosity is killing the cat.
I have the tool in the garage, installed probably 300 sets of cam bearings, but depending on how the bearings "felt" going in, I may or may not go backwards. That's why it is important to take your time. "Tap, and look". :biggrin:
If I were building a single digit ET car, with thousands and thousands tied up in it, I might yank a bearing I took to far and replace it, just to be safe. On typical engine shop stock motors, not so much. Saw a guy put cam bearings in one block, then found a crack, so he removed them and put them in another block.
Motor ran great and was nearing 80k last time I saw it. Different beasts I know, would be much more cautious with a HP motor.