MidSouth Club?

Art, I kept thinking " I don't remember the MidSouth running through mountains like that".  Then I figured that the Grande Pacific must have leased some units from MidSouth for evaluation.

My suspicions were confirmed when I read the ending credits.

Midsouth in Mountains

Yes Jack they were leased for run though to MSMRC in Baton Rouge. so that my story and sticking to it. 

GP-10s

I have always liked GP10s and have been waiting for these to come out.  While I model the KCS, which eventually bought the MidSouth.  It is about ten years too early for my layout.  I plan to pick up a pair of ICG GP10s for the ICG yard in Kansas City which is represented on my layout.

What sound decoders are included in these (InterMountain) sound units?

I have an Athearn CF7 in MidSouth paint on the layout which I use to switch a Tyson Feed mill, but it will need to be replaced.

Thanks for sharing.

Decoder

Hi Jim - These have Loksounds.  You can find some details on the associated recordings at  http://projects.esu.eu/projectoverviews/search?cat=6&q=gp10 .