My experience with diesels in CL is pretty extensive. I campaigned a Super Clown with an OS 25fp/Davis conversion. I was very satisfied with the performance, but never conquered the variability problem. I may give it another go with Jim T's idea of using an electric starter and never touching any of the controls while starting. That could make a big difference.

The engine proved to be extremely durable, I know it ran through at least 3 gallons of diesel fuel, and was still going strong the last I heard. I have also dieselized the C*x Conquest .15 and OS .15s. They are the two most powerful .15 diesels I have tested so far. I just acquired a PAW .15, so that will be an interesting comparison.

As to the Baby Clown, I flew mine for years with a PAW 55 (.035 c.i.) and a Master Airscrew 6x3.5 prop. 3/8 oz of fuel would take me through the full pattern on 37' of .008 line. The model was finally wrecked in a demo flight at an airshow when it hit a traffic cone that was there to rope off the flying area. The engine was unharmed, so it will probably end up on another Baby Clown, or perhaps the Baby Flite Streak.