I've been collecting TMCC GP7/9s in spurts and I've noticed that the engines made in 1998 seem to be of lower quality than those made in '96 & '97 and from 1999 on. The only problem engines I've had are from '98. A few have problems with sounds- the speakers seem to be faulty- very scratchy and buzzy and the volume level has to be low to run them with any satisfaction with the sound on. Also, a few have had weak couplers that I have changed out. I am just curious as to the history behind it I guess. I get the feeling there was something going on at that time with the company. I got started with all this in '99. A collection of these Geeps is like a history book of the development of Command Control. You can see the development of the technology when you open each one up.
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