Dear Neil,
Do not feel badly, I have dropped one from 4.5ft and have witnessed several
RB67 dropped for a variety of reasons.....2 of which from broken or deteriorated 3/8 to 1/4 x20 adaptor failure, (Brass is Better!!)
In all instances, the cameras were operational after the fall, the cosmetics, prisms and some lenses
did not fare as well, however do the following:
A) Turn camera without lens upside down
B) Slowly focus rack all the way out slowly and watch to see that it moves parallel to body mount
C) In almost always takes the focusing rack and skips a gear or two....
D) If so, a competent camera repair person can "GET YOU BACK ON TRACK" pun intended.
E) I Still have damaged RB67 body on bookshelf to remind myself to be careful on "Location" with any equipment.
Not the end of the world as replacement bodies are reasonable cost in Area76!
Keep shooting, this is the cost of becoming a better medium format photographer....
and get a lottery ticket...
Harlequin...