I think I  know which of  the  two ways  of folding bellows Craig
means  by  "flat end fold," though  I  would  be  hard pressed to
explain the  two types of fold  to  the person who inquired about
bellows folding on yesterday's list.  And  I never use  the  flat
fold either, though not  for  any  reason other  than  it  is  so
uncommonly  found  that  it  doesn't  look  "correct."  Therefore
Craig's reasons for avoiding it for practical reasons rather than
for purely esthetic reasons were very interesting.

My question is, though: Isn't there the same degree of mechanical
wear  in bellows folded the traditional way, albeit  in different
spots?

I  enjoy  Craig's  posts (usually) because  they  always  contain
useful tips or food for thought.

Another question to Craig: do you avoid a hard crease in covering
bellows  and  other pneumatic motors,  as  is recommended in  the
literature, on the theory that a crease concentrates the wear and
leads  to premature failure of  the motor along  the crease line?