dstrong,

they may not be the same frame. the geometry and the way the seat stays intersect with the seat tube is a unique thing i have seen with the giant defy's and from pics only share that with the gravity's.

Maybe BD buys the bad welds that dont pass QC from giant at a discount? that could be the reason for the difference your seeing?

but like reshp1 idea, i think i am just going to save some more $$$ and pick up a 105 at the LBS's year end or winter sale. it just sucks to wait that long but my 80's road bike is good, for now