RE: Modeltech Magic Extra 300L + .52 XLS
Mark:
If the 40 is a Magnum XLS 40 you can't tell much difference from the same plane with a Magnum XLS 46 or an OS 46 FX.
With the Magnum XLS 52 it will really go, you'll have to be careful not to overspeed the plane or the engine.
Bill.