360 Con rod bearing quick question

Install the bearings as they are, never take a file/grinder to any bearing IMO!

I am very reluctant to take a file to the bearings. Doesn't seem sensible, plus I'm bound to **** it up. It would seem like a better option to find bearings with the slot, as more oiling has to be better. Doesn't seem to be quite so easy though, as the correct part number seems to be hit and miss as to whether the slots are there or not. Thanks for the help, much appreciated :)