I know this has been discussed "ad nauseum" (spelling?). But being a neurotic with OCD tendencies, I need reassurance.
I needed a new BB for my C-record era Chorus crankset (111mm symetrical spindle). I found a brand new modern Pista BB in my parts box (111mm symetrical spindle). How it got there? I don't recall. So, I figured, why not? I heard stories about Campy changing their spindle taper around '94. I pushed the crankset on both spindles and it seemed to go on the same depth with hand pressure. I measured the spindles at the tip and a point almost at the widest part of the taper. They are within .1mm of each other. Not that I used a very precise method. The only thing I noticed is the Pista spindle's taper is about 1mm longer. So, I mounted the crankset. Torqued it down. The chainline looks good.
As I'm lying in bed, last night, I start to wonder. So, out comes the laptop and googling I go. Damn, there are so many different opinions. Sheldon Brown says Campy spindles are ISO. Velobase says the C-record era spindles are ISO. Phil Wood says to use a JIS taper for pre '94. Some shop's sites say also use JIS. In various forums there are mixed opinions. I know the Pista spindle is ISO. So, to make a long story short, my question is:
Am I ok with the Pista BB on the C-record era, Chorus Crank?
I don't need a mechanical failure (at least, one caused by me). I've broken enough bones in my life.