See this links
Thisn links contains info about ECO IDC..and anothers evolutions.
Thats including "fluke channel" and new ECO Evolution are small ..are pretty ..and too stable at fast.For 6 or 7 cell.Car motor 12 or 10 t..and brushless.Prop 28mm or 30mm.
Aqui tienes el link
http://www.eco-idc.de/haupt.html
http://www.miliamperios.com/foro/viewtopic.php?t=55474
Saludos from SPAIN VALENCIA