The RV-4 was my first Stevens kit. Electronics were first generation Spectrum on DSM2, this was in 2005 or 2006. The all laser-cut kit RV-4 was ahead of its time, as I used to building with templates, print wood or die cut parts. My RV-4 was powered by an AXI2212-34. When I brought the model it to the club, I was told I could not fly it, due to my transmitter not having a telescoping antenna!!!! My how things have changed, but Stevens aero is still progressing!!!