Just to make certain we are talking apples and apples I am not referring to
the published (AIM) for one, Preferential Routings. I am speaking to the
ARTCC (ZAU or ZMP) internal computer routings. That'll be what comes out
between the plus signs.
Al

"Steven P. McNicoll" wrote in message
nk.net...

"Allan9" wrote in message
. ..

My sneaking hunch would be your southbounds are affected by MKE's


Yes, MKE has preferential routes. As do many other terminals which
aircraft may be cleared to from GRB. But GRB has none.