Hey Dave,
P300PRO all the way.
The comment is - UNBELIEVABLE.
The PRO engines are a huge leap in technology and really a beast. Huge power, acceleration, but the best feature is the onboard charging.
I've got the GL version with the generator which charges all onboard batteries. I fly all day - UNLIMITED flights - no limitation on battery - no need to change or charge the batteries.
Here's a snapshot of the telemetry data from any random flight. See how the batt voltage for both Powerbox batteries (V-BATT) stay fully charged while the engine battery charges (BattCapa) as well during a 7min flight.
A huge leap - no words can describe it.
See here the flight, if you notice, I'm taking off with around 60-70% throttle:
Good luck, all the best from Dubai.
Tassos