Hello BNSF7173: Good choice! Found something in my bookmarks concerning that GP38/just have a look:...
Don't worry, be happy! Or try to do so, never give up, if you want to get it, if you know what you want! Means: there is a lot in z-scale, only it...
If you bought some Z-scale brass locomotives, please tell what there performances are! Make some comparisions, without getting too much negative...
Where are you? - The modelers who are into Z-Scale with (North) American material, means Micro-Trains-Line first! Even in Model Railroader...