Hi, To make a long story short, I swapped out my oval track with Kato Unitrack (it was a gift and BTW I love the stuff!). I have a first time layout with just loops. 4x (about) 7 oval and with an over/under figure 8 inside. I would now like to replace the figure 8 track, but I don't think I can use Unitrack as it only comes in 22.5" curves. If I am wrong on this, please advise. Since I only want to use sectional track, from all I've learned here (which is much I can assure you) the next best option is EzTrack. So here is my question: If the diameter of my figure 8 "circles" are 36" (outside rail-to-outside rail) is that 18 degress radius? Thanks! Pete I don't understand half of it, but I read all of it!