No not yet, this will be the first. However, I have checked them out as best I can and have not found anything unfavorable about them. A friend of mine at our flying field has a set of Roberts converted vy rhwm and is very satisfied. I had converted some Roberts with the Lado actuators and his is a much better solution. I have emailed them to get a cost estimate. We shall see. One thing for sure. I much prefer electric retracts to the other options.