It is a different plane all together. The 150s were underpowered in the literal sense but they were not bad flyers, they were lightly loaded floaters and you could really flip them around and make it look scale. If you wanted raw jet climbing power and speed it was not the EDF for you. The new power package is allot faster, with allot higher climb rate and just different in the way it flys. I used an 8 cell 700Mah Nimh pack from a hummingbird heli in the 150 powered A10 and a 1100Mah Lipo in the newer one. I can see myself buying another 150 and having both, they fit two different flying styles.