Id say if you wanted a quick break in then thats the way to go. There is an immense amount of pressure on the rod when 4 stroking a nitro engine.
Id say if you were a sponsored driver and got 2 to 3 free engines a year and only used them for 2 meets and a long tedious break in is not convenient then yeah for sure.
Ive tried the WOT break in to the letter and had an engine ready to scream within a litre, but the engines i tried with this break in method lost compression at the 5 to 6 litre mark.. Maybe i got it wrong but i did it 3 times.. needless to say its not my preferred way of break in. that dosent mean it wont work for you. My team drivers were using this method too and couldnt get more than 10 litres out of an engine. They changed break in methot to heat cycle and some have close to 55 litres and still loads of pinch.
MM