Jean-David Beyer wrote:

David Nebenzahl wrote:
On 1/24/2004 9:04 AM Jean-David Beyer spake thus:

David Nebenzahl wrote:
I'm guessing
that the problems associated with constant, invariant agitation
in this device (Jobo) must have something to do with the interior
geometry, topology or hydrology of the gizmo, as I never have
problems with my rotary processor, which is the Beseler Unidrum
(for 4x5 and 9x12). There must be something inside the Jobo--some
baffle or something else in the flow stream--that causes
standing-wave patterns, eddies if you will, that lead to these
"road ruts".

I disagree. If there were an _inherent_ problem to the Jobo
processor (more precisely, its tanks and | or reels), then
_everyone_ would get these problems, and I do not. Many people use
them successfully, and some even use their fancier reel-less tanks
for negative processing with success. [...]

So you're saying that anyone who experiences problems such as those
described by the OP must be using these old reels? Do we know what
kind of reels he's using?

What I am saying is the problems are _not inherent_ in the Jobo system,
since I, among others, get no road ruts (even if carefully measured),
and without heroic measures to ensure their absense.

I've use a jobo for over 20 years and never had any problems that were
processor related.

So it must be something the others are doing.

Yes.

While it is possible that
all those people (however many that may be) are either very sloppy
processors using too little chemistry, people who are trying to develop
negatives in print drums, using old reels, _or something else_, but I
have no clue what the something else might be, and I doubt it can all be
attributed to sloppy processing.

I mistrust those who say to rotate the processor 90 degrees to change
the magnetic fields though. They are either joking, or egregeously
ignorant.

The something must be they're processing by astrology charts instead of the
Jobo manual...