This is based on Bonneville Salt Flats and FAI (real plane) speed records. A two-way average. A little bit more challenging than just one-way level flight.
But still somewhat less challenging than the proto/carrier style of speed that demands a light model and non-sagging acceleration.
This is not exactly for "beginners", it's more for modelers who are not engine builders.
I don't think you can find anybody at The Brodak who can't fly both ways, and if there is he can find a pilot.