Hey guys,
if you are interested in Servonaut products you can order them directly.
Look here:
http://www.servonaut.de/shop/index.php?language=en
There you will get all information ab the products.
Otherwise gardentrucking ( as servonaut distributor ) is selling the servonaut products in US.
http://www.servonaut.de/shop/shop_content.php?coID=100
These products are not cheap but they are the best.
I use M20+, SMX, SM+, AIR4, AMO and motor.
No problems with these parts - great.
Günther from Lübeck/Germany