I was just wondering if you had used them with success. I had 4 of them and they tested fine. I was only going to use them on throttle, for my gas engine planes. I mentioned it at the field, and someone sent me a link to RC report where the guy did a review on them,after reading the review, I sold all 4. I also did a google search, and wasn't happy with what I read. I know there's alot of them on ebay, and they go fairly cheap.