I just fired up my new Husky 150BT and it seems to run pretty good and has a decent amount of power. I am still breaking it in, so I'll feedback more later. I noticed it has a fair amount of vibrations at idle to just off idle to about 1/16 throttle. It then smooths out at higher throttle positions. The engine runs smooth with no misses. At idle shakes on the rubber mounts maybe an 1/8" or slightly more. Is this normal for this blower?