That was a close call String! You almost voided the warrenty on that adapter if you had chucked it up in your lathe! I couldn't really see the gap you were refering to. Here are the best pictures I have with the adapters, BB, and cranksets in place.

First is the '62 Continental with a FMF adapter, Shimano UN54 113mm cartridge BB, and Campy Record crankset.



Second two pictures are of the stoker end of the '79 Twinn Sport. The no-name adapter was an ebay win at $5, a Nashbar 115mm cartridge BB, and a highly modified Sakae (dump find) crankset. The crankset is essentially a quad. At this point it doesn't really work because the right side drive arm hits the timing chain.


Here's a picture of the original BB set-up on the Twinn Sport, which is simular to the one Kurt mentioned. The spindle on this baby was about 125mm which kept the modified Sakae too far outward from the frame for the FD to work.