Got and Evolution .52 2-stroke with 11x8 prop in my Pulse. Getting great speed with it, but due to the prop I have to "watch my High G manouvers" so that the engine doesnt stall. Might sound strange, but I out runned 2 guys at the field today - one SU26 and one low winged speed ******* model. So it is quick for sure.
Great gliding as well. Think I had about 10 mayday landings with it.
Really love it. But if its windy and you are rookie, be careful close to the ground, since it is rather jumpy
Edit: This is the easiest assembled plane Ive ever build, used only 7 hours.