I have two of the XYZ ignitions. One on a Ryobi 31cc and one on a Poulan 25cc. Both have run good on the bench. I have not got the Poulan in the air yet as I have not finished the airplane for it. A Dynaflite SE5a. The Ryobi is on a 4 star 120 and flies it well. But has been glitching on me. I was using a spark plug without a resistor. Just switched it out to a resistor plug but have not got it back in the air yet. I like these ignitions. If they continue to do well, I will buy more.

Jim