I wish RPM Products would get into the large scale rc field. I know a lot of guys like the look of aluminum and so on, but I'm not one for a 100% aluminum truck. For one they are way to heavy and two once you bend aluminum, bending it back just makes it that much more weaker. I don't have $100-200 for arms to shell out each time they get bent. I've used RPM arms and other parts on every R/C I've ever ran. They are very inexpensive when compared to the cost of aluminum and they tend to hold up even better, plus their warranty can't be beat -- break it and they replace it.
-Michael
-Michael