Heavens NO! It is still the best power plant for this sort of thing. The quiet has been me being unable to do much the past summer. Health issues. I assume Mike Austin has goTTEn A pipe on his and is having fun...
Have had an opportunity to see the DA35 in action and I was not terribly impressed. It should do better on a ESC pipe tho.

OS has done a great job stroking this engine. It s exactly what was needed to haul the big lumber. But frankly, the engine came out too late. Had it come out when the 140RX did, it probably would have dominated pattern for many years...