For the primato crankset you need an ISO square taper BB. The Miche one is the cheapest, with campy and phil wood also being more premium options. I have the primato advanced on my bike and I like it, decently stiff and the ring that came with it seems pretty round too.
I have several teammates who got Miche Primato stuff when it was cheap on QBP and they all love it. The bottom bracket is probably the best-spinning cartridge BB I've ever seen. I've never heard of any problems with it, and it's certainly cheap enough (like $20 on PBK) that it's worth taking a chance on.
Originally Posted by doofo
the main cause of fit problems is riding your bike
you should have just stopped riding so you could focus on color coordination