For those who were interested this past weekend at the NERR race here is (I believe) the chassis that was built for this thread 10 years ago. I had set it up to run at a race pre Covid but used another car. I dusted it off, changed motor and guide height, and put on fresh rear tires. Race weight was 107 grams, track was a Gerding King. The car was a lot better than I was but a had a lot of fun. Thanks Jim