From another thread, I had promised some more pic's of Wayne & Jim Smiths Tracer designs. I hope they will chime in here. I believe they are based on a Stiletto 660 wing? The rest is of their own design.
Wayne let me fly his, and it flies as good as anything I have had a handle on. Jim's is the same, except he went with the split cowl inlet, and a different paint scheme. Both have PA61 on pipe. Previous Tracers I seem to remember having Discovery Retro 60's, and 4-Strokes as well. Jim has an older one with a Saito 72 even. I don't know if they ever drew up full size plans...
Here's a few pic's of the different Tracers from over the past few years I've seen them build, Starting with the new one's, going back to the 2005 Rebel Rally.
EricV