the first device that I was supplied split, hardworking wood (birch), lost a few meters Transport through my garden a wheel. This also could not be more secure, therefore exchange. On the second unit of the engine made it from the beginning only in a certain position, the gap slide to move immediately. Usually it took a few seconds, until he came into the aisles. Mostly nothing happened (and it was not on wood) and you had several times the start button and lever operated until he had the "dead point" overcome. Too Bad. It would have been nice to get a discount appliance free shipping with no quirks. Unfortunately, a second complaint. I'm the brand well in the future rather avoid.