RE: Elvolution 3 blad training prop on nexstar?
Not quite the same thing...
The PTS prop serves a purpose, keeping the plane within a specific flight envelope and making it far easier for the newbie...
The Alpha is such a "gentle" flyer with the PTS prop that there really is no reason to swap it out for the beginner.
It's presence permits them to learn to use the throttle w/o much danger.