Well I have had two also, the first one had a loose screw on the cradle which broke, ACE replaced it, no problem. It ran like ball busters until it started to make a squeaking sound. Couldn't duplicate it by turning it over by hand. Sent it to ACE but unknown to me they were moving to California! My engine apparently was on their moving van to California. Took a couple of months but they came through. They admitted the bearings were bad, not rusted, and replaced the entire engine because the retainer had let go causing further damage to the internals. Maybe you have a point. But I am still breaking this one in, it is starting to pick up that extra power they have, and starting to behave in the inverted position. If it does the same as the last one or ACE gives me poor service I will be in your camp.