Kind of hard to explain, but here goes... thanks for reading BTW... I bought an Athearn Dash-9 loc, the six axle type, hoping that it would go around my layout. Well, at first it didn't. My curves are "about" 20" radius, so I figured that would be okay. I am using Peco code 100 flex. I have endpoints of track coming together on two curves that I couldn't avoid, and that is where it is derailing. With the flextrack, on a curve, where two pieces of track come together, it is hard to maintain the curve radius, as the the ends tend to point outward as one would expect. So I have two questions. How do we maintain the curve radius around these points? And, since I have already laid my track, how am I going to "push" the track in, to eliminate that point in the track that was created? I have it somewhat rigged now with the track pushed in, and I have no derailments at all, so that was the problem. I just don't know how I will affix the track. As I said, I am using Peco code 100 flex, and have it glued to Woodlands scenics foam trackbed. I glued it with "Tacky glue" that I got at Micheals, which seems to work well in this hobby. Thanks all.