I tried the baler out this weekend to attempt to salvage the hay that had gotten wet. All in all, she worked great. There was only one bale that broke, and that was because of bad twine more than anything as the knot was perfectly tied but the twine had a black mark where the break happened.
I have been experimenting with it to keep the tension better on it by giving a lot of down pressure on the bale and then decreasing the knotting length so that once it pops out, it fills that void that the twine left so that it is the proper size and is nice and tight.
I have to say though, that for $150.00 she works really damn good!