I'm building my first layout with EZ Track and would like to know what piece of track do I need to make a number 5 turnout come back to run parallel with the straight part of the turnout. I thought at first that a standard length 18 inch radius curved section would do it but it's too long and will curve into the straight piece. I am trying not to do the trial and error thing and start buying track sections that I don't need. Is there one piece of track that I can get to do this or am I going to have to do surgery on my 18 inch radius piece. Thanks for you help.