Im convinced...after my last and very recent race at RPR where I was knocked out in the first round you need a timer to test cars....there I said it. Let me explain. I dont currently have my track set up which does have a timer so I thought "what the heck I can build fast cars" I'll just build a car and send it in...and probably won't win but fair pretty well. NOT THE CASE AT ALL! Actually I was knocked out in the very first round (by a stock car I believe). See the difference between this last car and all the cars before is the cars before were tested on a track with a timer which allowed me to build, tweak, and tweak more if needed and ultimately find "THE ONE". Some builders like LOS, not sure about Mattman, and a few others can build a car without a timer and be competitive if not win...not sure if they have a "zero car" or "baseline car" where they have a proven car to test against or what method they use...me on the other hand I had a "track record" that I was always chasing. I'd like to hear everyone's thoughts on building with a timer vs without, and the different methods of ensuring you are sending the fastest car you have. I'll bet most of the heavy hitters are using timers to build...also LOS is fixing to have a timer so I suspect his cars will definitely get a bit quicker...just saying.