Seems I recall hearing back then that this particular engine was somewhat of a rough runner, at least initially until it got broken in. Similar to all Pullmor motored engines, but this one took more loosening up than others. It's been quite a while since it came out, obviously, but I do remember some questions about its capabilities as a runner. That wouldn't keep me from getting one if I were in the market, though, and found it at a good price, but it would be good to get a running report on it first.