Got an evo .46 in my sig kougar. When I first got it new, them dummies at the factory had the low end needle completely closed.
After awhile, I got kinda ticked because of the limiters. I dremeled the low end pin out. Why in the H3LL would you make an engine
with a limiter??
For awhile, it would run but if you went to full throttle, the rpms took 7 seconds to go full. After adjusting the high end again it ran okay.
Next problem though, muffler's long screw kept getting loose and somehow the small nut at the end broke off. My last flight ended in a dead stick
just after takeoff due to the muffler getting loose. Plane would not accept throttle response. So, I am now going to grab another muffler.
When the engine is running good, it really yanks the kougar around!!!!! But the engine don't run good all the time like my OS's run.

Lucky...