Identifying bushed and press fit pistons

At the risk of stepping on someone's toes and/or looking like a dimwit myself.
So I'm guessing the rod hole is the same size as it does not determine the design, it is either press fit of floating? Press fit would just be a slightly larger wrist pin?

So the wrist pin hole on the piston would need to be slightly larger as well. Correct?

Part of my confusion as to why I didn't just remove the retainer clip, is both rods having the same casting number yet both have different pins.
Another point of interest in regards to bushings. I believe I read somewhere in a FABO thread that some people have put the floating pins in without bushings. So it is possible that the ones with the retainer clip was originally a press fit.
I'll take one apart this evening to see if it has a bushing.

Thanks everyone.