RB25 Bearing clearances

[HawtShawt]

Hey guys, I'm rebuilding a S1 RB25 and havent ever really gone this far into an engine before. Was just looking for a few pointers to help me through this process. I just got my bearings and main studs in the mail yesterday and decided to plastiguage the crank this evening. Even though i didn't and still don't know exactly what to do with these measurements, i decided to go ahead. Got all my measurements, took pictures, all that good stuff. However, now i am reading all sorts of mixed information online and its just throwing me for loop after loop. I read as much as i can on something before making any major decisions, but i don't know what it is about bearing sizes...i just cannot wrap my head around it. I ordered standard sized bearings (just to check clearances with) and all of my readings came up between .038 and .025, even some leaning closer to .025. Do i need to order larger bearings? I'm going to have the crankshaft polished probably tomorrow or the next day. Will i need to recheck clearances after i have it polished? How do i use a micrometer to check for roundness of the crank? Thanks ahead of time guys.

[HawtShawt]

Okay i believe i may have just answered one of my questions. Correct me if i am wrong here. Searching through the RB fsm i've found within the RB26 section how to calculate oil clearances. I'm gussing it is the same for an RB25. On page 239/EN-219 it states Oil clearance is equal to main bearing inner diameter - crankshaft journal diameter. My numbers were .025 and .038 with more towards the .025 according to the plastiguage paper. Since i don't have a micrometer (but will pick one up to double check readings), i take it my clearances are okay to use standard sized bearings?