A big For What It's Worth, since the following probably doesn't have anything to do with your frame:

I just received a new Felt frame. The instructions accompanying it specifically says the BB shell is "precision machined" and "with the exception of greasing the bottom bracket threads, ... does not require any bottom bracket pre-install preparation." ... "Do not face bottom bracket shell or otherwise attempt to modify the surfaces of the bottom bracket".

I wonder if your frame mfgr has anything similar?