I wanted to let those of you know who dont already -there is a difference between the Evo.Trainer .40,and the .46NT......Alot of people refer the Trainer version as the .46.
The trainer version with the three blade prop also has a "flywheel" to help maintain a nice idle,and is "almost" a .46...The .46 has a bit more power.The trainer version has this prop and flywheel to really help slow the engine down to help beginners land easily.
I have found that with this combo,that if there are more than a few other planes in the air at the same time,its hard to hear your own engine running...have had a student or two think they about to dead stick back to the runway ( until you tell them all they have to do is apply power to find out)
Just my three cents