So fusion 3 has had a new density block replaced by McHale because it wasn't charging the chamber properly. Recently the pressure began dropping quickly and not charging tothe set value of around 170. Putting the box into manual made no difference. Mechanic came out first thing he did was unscrew the density setting knob and screw it back in. This cured it and it has worked well for a while. I've since done this again. But I'm still not happy with the bales and the fact that neither the dealer nor McHale seem to know the reason why. Anyone had anything similar happen?