Mario
I guess you had a bad experence. Maybe when they started out. I hate that. I have the Robart set up in my p-51 that was built by D&L. We have 3 other 80inch Jugs on the field with the same setup. In fact one of the first jugs with Robort that failed Mitch replace the parts and service them at no cost.
Maybe you can find a electric set up that will work.
Here is a video of my new Skygate Hawk that I hope to maiden soon. I have seen a couple of other do well with this set up.
http://youtu.be/m7ARt3V_9es