Most if not all modern plain bearing engines are designed to strict tolerances and offer a range of shells with minute differences in dimensions to be able to compensate for the tiniest deviances. Not so with our triples, one size is supposed to fit all, which must mean that there will be differences in bearing clearances between individual engines. When I changed the crank in mine, I measured the journals to be at the upper limit of the as new specs, but I didn't measure the bearing housing or the shells. Nor did I use plastigage, so unlike a proper engine builder
I don't know where my clearances are at. I did check the housings for roundness, but that was all.
Now a bigger clearance means more oil flow, which is overall a good thing, and the pressure will be lower, not necessarily a bad thing. My bearings came in a plain white box with no clue to who made them.
To the question: Is there a chance that one could possibly get bearing shells that are on the large side, and/or have housings also on the large side, and could that possibly lead to a sub-standard oil pressure? If so, does it matter as long as you get say 10psi/1000rpm with the oil at 85C/185F?