Thank you. Do you (or anyone out there lurking) happen to have a 1991 and 1993 Serotta catalog in pdf? In 1994 the construction looks like the profile of the tubing went symmetrical. I will not be able to sleep until I hammer down the year of this frame.
Side info: The Trek OCLV I picked up as well is a Gen 1 9900, Black with the icey blue logos!