Given the time scale I would probably let it lie, but I'm still not
convinced by the aufflamen example on page 17.

The new PS file says

(T)q(he)h(printing)f(r)o(esult)i(is)e(\252auff)q
(lammen)n(\272)1995 4334 y(instead)21 b(of)g(\252auf)q(\257ammen)n

Which looks like the first example is printing 
        f f l
and the second example is 
        f <fl>

The second example would be consistent with BV not using the expert
set, but I wonder how using "| to put a visual break between the two
f's managed to break the following fl ligature in the first example?

I would have thought that actually you would want 
auf"|flamen 
to produce

 f <fl>  (as opposed to <ffl>) (or <ff> l if no <ffl> ligature)

and that you would need something like
auf"|f"|lamen

to break both ligatures.

So I would leave it this time, but perhaps could check what the VPL
file is doing with f ligs one day?

David