The straight piece of track in between the turnouts is long enough to prevent too much problems with the s-curve. I also added a small piece of flex-track behind the spur leading to salco, I tested trains on it and there are not very many problems so far. All progress on my layout can be found here:http://www.the-gauge.net/forum/viewtopic.php?f=46&t=3011 I will be posting a thread here at trainboard once I get the time.
