Just broke the 46 in on my Pulse XT over the weekend. Fueled, fired, and ran it in with two tanks rich just shy of lean. It blew a glow plug right after break in but I'v heard this sometimes occurs during initial run in. Replaced it and rolled it out for take off. Ran beautiful with very little adjustment to high and none to the low. We did put a short piece of fuel hose over the high needle to eliminate any needle walking that some people have experienced. So far so good ......