Josh, I would probably use BLL (original, I stocked up on the no-buff Johnson's before it disappeared) on almost all my pistol bullets except I got involved with suppressors a few years ago. Then I discovered what it's like to shoot cast bullets with jacketed levels of smoke, now I just PC everything. What I REALLY wish I could do was powder-coat .22 rimfire.
As to BLL over PC, I only tried it once and while not dismal it would throw the first couple of shots and added unnecessary smoke to a system which works just fine without it. I figured at some point in pushing the velocity of PC'd rifle bullets way up I'd start to need a lube of sime sort but so far I've gone over 2900 fps with heavy .22 bullets and not needed any extra lube yet even shooting rapidly and on hot days with many rounds down the barrel between cleanings.