I feel for you! Unfortunately, I have seen these problems on many different makes of engines. It seems like no manufacturers are immune. My K&B had 4 separate isues. Other engines I would not own are OS .40 LA, OS .91 FX, and ASP .91. I don't want to turn this into a "what not to buy" forum, but if you see enough issues with an engine, or experience enough issues with an engine, it makes sense to stay away. My only experiences with the .76 have been positive, but you give me reason to be cautious. I wish you the best of luck!

Andy