I have settled on a track plan that fits what I want to do with my railroad. It is plan #62 Adirondack from the book 101 track plans. You can also see a small version of the picture at trainplayer.com. I have 15 code 100 NS flex tracks, 21 code 100 NS #6 custom line turn outs already. I have had them for a long time. Now I have found code 83 track. It does look a little better then the large code 100. Is there any real operating differance between the two codes? Is it just for "looks" thing with the smaller code rails? Do the trains care one way or the other? I have read about mixig them on a layout. Would you run the 100 on the mainand the 83 in the yard or the 100 where you could not see it up close and the 83 in the front of the layout just for looks? Dru.